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Cappy in a Haystack is a side quest in the Fallout 4 add-on Nuka-World.

Quick walkthroughEdit

Side quest: Cappy in a Haystack
Talk to Sierra Petrovita.
Reward: Cappy glasses
Hidden Cappy contest hints
Find Cappy in Nuka-Town USA.
Find Cappy in Safari Adventure.
Find Cappy in Dry Rock Gulch.
Find Cappy in Galactic Zone.
Find Cappy in Kiddie Kingdom.
Find Cappy in World of Refreshment.
Return to Sierra.
Search the offfice
Turn off the life support.
Let J.C. Bradberton live.
Reward: 400+ XP
Nuka-nuke launcher
Reward: Nuka-World jumpsuit

Detailed walkthroughEdit



Between The Parlor and Fizztop Grille, Sierra Petrovita is encountered talking to a raider. Intercepting the conversation reveals that she has come to find the reward for finding hidden Cappys throughout the park. Given that the reward was meeting the creator of Nuka-Cola, she figures that his office might contain the original recipe of the drink. She gives her sunglasses along with the holotape Hidden Cappy contest hints to the Sole Survivor to allow them to help her search for the hidden Cappys. Once close to a quest marker it disappears, encouraging a thorough search of the area.

The "hidden Cappy" figures are paintings on concrete surfaces in public areas of the park, and there are ten to be found. Without the Cappy glasses equipped, the player sees only a fuzzy Cappy figure with a blurred speech bubble; with the glasses equipped the code is revealed. Click on the revealed figure to register the code and update the quest. Note that the Cappy glasses do not work when worn under power armor. To see the code, either simply take off the helmet (one might have to re-equip the cappy glasses even though the box in front of them is ticked off as if they are already equipped), or exit the power armor, click on the hidden Cappy, then re-enter power armor.

Nuka-Town USAEdit

There is one located west of the Fizztop Grille, on the large wall beside the restrooms building.

Safari AdventureEdit

There are two in the Safari Adventure. The first Cappy is through the hedge maze beneath the treehouse, against a wall on the eastern edge. From the entrance, the order of turns is: right, right, left, left, and right. The second is just outside the primate house. Look for the gorilla statue to the right of the door and pass through a patch in the hedge to get to the statue's back. Cappy is on the back of the plinth.

Dry Rock GulchEdit

There are two in Dry Rock Gulch. The first is located on the back of a gravestone next to the Giddyup Kid protectron. The second is in Mad Mulligan's Mine, on the wall of a little shack beside the waterfall.

Galactic ZoneEdit

There are two in the Galactic Zone. The first is at the entrance to the dead traders' camp around the back of Star Control entrance. The sign should be on the left side entrance, right next to the Employees Only sign at the Expert locked gate. The second is up the ramp to the left of the RobCo Battlezone. Turn right immediately at the top of the Spacewalk ramp, and the Cappy is on the right wall near the trash bins.

Kiddie KingdomEdit

There are two in the Kiddie Kingdom. One is in the Fun House in the turntable room, second door on the left when entering from the topsyturvy room or second door on the right when entering from the room with control terminal for The Fun House. The second one is located on the top floor of a destroyed wooden clocktower, just west of the bridge leading to King Cola's Castle.

World of RefreshmentEdit

There is one in World of Refreshment. Inside the plant, following the Nuka-Cola Quantum river, it is on the side of a two-story building across from the Nuka Victory sign in the wild west setting. Going in the opposite direction that was intended for the ride helps the player character spot it easily, it'll be on the right hand just after entering the wild west setting from the 'wrong' direction.

Return to SierraEdit

Return to Sierra Petrovita. Putting the hidden Cappy clues in the right order results in "REFRESHING", as stated by Sierra. Use the keypad to unlock Bradberton's office. In the office on the second floor, there is a button on the right hand side of the Nuka-Cola machine. This unlocks an elevator that leads down to a small vault, containing the head of the owner and inventor of Nuka-Cola: John-Caleb Bradberton.

Siding with BradbertonEdit

He will request the machine to be shut down to end his torment of being trapped in there for decades. If one chooses to honour his request and to shut off the power, John-Caleb dies and the locked door will open. Behind the door is a Nuka-nuke launcher, Nuka-nukes, the Nuka-Cola formula as well as various Nuka-Colas, and the key to Bradberton's expertly locked vault in his office. The Nuka-Cola formula must be given to Sierra to complete the quest and she rewards 500 caps in return

Siding with SierraEdit

Sierra on the other hand wants to keep him alive, offering that she can keep John-Caleb company to keep from being lonely. She offers the Nuka-World jumpsuit as a reward.


If siding with Bradberton
  • Nuka-nuke launcher - Awarded after siding with John-Caleb Bradberton over Sierra Petrovita and cutting power to the Vault.
  • 500 caps after siding with Bradberton and then handing the Nuka-Cola formula to Sierra.
If siding with Petrovita
  • Nuka-World jumpsuit - Awarded upon completion of the quest after siding with Sierra Petrovita to keep John-Caleb Bradberton alive.

Quest stagesEdit

StageStatusDescriptionLog Entry
5 Follow Sierra on her Tour
8 Talk to Sierra
9 Equip the Cappy Glasses
10 Find the Hidden Cappy in Nuka-Town USA
20 Find the Hidden Cappys in Dry Rock Gulch
30 Find the Hidden Cappys in Galactic Zone
40 Find the Hidden Cappys in Kiddie Kingdom
50 Find the Hidden Cappys in Safari Adventure
60 Find the Hidden Cappy in the Bottling PlantI met Sierra Petrovita, a Nuka-Cola fanatic who traveled to Nuka-World in order to find something important. In order to earn her trust and learn what she's looking for, I agreed to let her give me a tour of Nuka-Town USA.
70 Return to Sierra Petrovita
80 Use the Keypad
90 Search the Office
95 Explore the Vault
100 Talk to the HeadSierra Petrovita asked for my help in finding 10 Hidden Cappy images in the park. Each one has part of a code she needs to access the office of John-Caleb Bradberton, the inventor of Nuka-Cola. I need to wear the Cappy glasses Sierra gave me in order to see the Hidden Cappy codes.
110 Accept Sierra's Offer OR Shut Off the Power
120 Shut Off the Power
130 Obtain the Nuka-Cola Formula
140 Give the Nuka-Cola Formula to Sierra
1000Quest finishedIcon checkQuest complete


  • Cappy clues are non-interactable if the player character is inside power armor. Even if the player character wears the Cappy glasses inside the power armor, the clue remains non-interactable. However, if the player character 'unequips' the power armor helmet and replaces it with the glasses, the clues are interactable.
  • It is possible to acquire both the Nuka-nuke launcher and Sierra's Nuka-World jumpsuit by siding with her first and shutting down the vault's power after she has handed over the item. The doors to the weapon storage will open, but Sierra will turn hostile if this path is chosen although the Sole Survivor can choose to leave the area to avoid having to kill her.
  • Bradberton having his head cryogenically frozen may be a reference to the myth that Walt Disney was cryogenically frozen after his death.
  • Although John-Caleb asks the Sole Survivor to release him from his suffering, appealing to a humane or sympathetic side of them while only mentioning the contents behind the vault door as an extra incentive, the only dialogue replies when choosing to kill John-Caleb seem to be out of personal gain and are based on greed and the desire to obtain the Nuka-Cola Quantum based ammo. There seems to be no dialogue choice to indicate that the choice is out of pity for John-Caleb or to honor his request.
  • If one sides with Sierra and completes the quest, the power can still be shut off, resulting in Sierra turning hostile.

Behind the scenesEdit

50 Vault-Tec C.E.O.The following is based on unverified behind the scenes information and has not been confirmed by canon sources.

This quest is a derivative of "needle in a haystack."

50 Vault-Tec C.E.O.End of information based on unverified behind the scenes information.


  • pcIcon pc xboxoneIcon xboxone Once after taking the elevator to the vault and following Sierra up the stairs Sierra will become stuck in the corner of the stairwell, or stuck on the walkway. To fix this go completely out of the office and into Nuka-Town then re-enter building and return to the vault. Sierra will be talking to the founder's head and the quest can be continued.[verified]
    • PC players can also use the moveto player console command to teleport her out of the corner and she will continue her path towards the door.
  • ps4Icon ps4 Once the inner door to the vault is opened, Sierra may stand in place instead of entering the vault.[verified]
    • This can be fixed by closing the door again, which should then trigger Sierra to continue normally.
    • It seems bashing her with a gun works as well. However, she might turn hostile to the player. In this case, the player should holster their weapon.
  • ps4Icon ps4 xboxoneIcon xboxone Sometimes unable to collect hidden Cappy in Safari adventure. The only fix is to reload to an earlier save file and attempt to collect again.[verified]
  • pcIcon pc Hidden clues may fail to activate once the player character has found them. One can use console command SetStage DLC04MS01 200 to complete the search for the clues.[verification overdue]
  • pcIcon pc xboxoneIcon xboxone To get the glasses, the player character has to give Sierra a Nuka-Cola Quartz. If Drinkin' Buddy is used to make it ice cold, it will not be valid to Sierra, and will be ignored.[verification overdue]
  • pcIcon pc If the player tells Sierra that he plans to kill Bradberton, the conversation will be repeatable as long as he doesn't throw the switch. Companions influenced by this dialogue option may react every time this option is chosen.[verified]
  • pcIcon pc Even if the player chooses to side with Bradberton and kill him, the final Pip-Boy log after completing the quest will say "Despite Bradberton's wish to be etherized, I accepted Sierra's offer of a reward to keep him alive."[verified]
  • ps4Icon ps4 After shutting down the power, John-Caleb's eyes will continue to move even though he is dead.[verified]