Here the story

yakko wakko and dot walking the town they saw fazbear flight

they went inside and goes in the office

springtrap hears someone in the office and walking and saw yakko wakko dot in office

yakko question springtrap who you are

Springtrap lift his mask and they saw springtrap human corpse head

wakko press the audio button springtrap follow the sound

wakko yakko dot playing audio button and trolling springtrap

springtrap getting angry he decides to crawl the vents

https://youtu.be/uvtznZNFUXM

Yakko close the vent and dot wakko join yakko playing the vent door button

(Like that video on it)

Springtrap run to office and charge at them

but warners brothers and sister dodge it and laughing at him