WATCH: Captain America's Chris Evans surprises fans with an escape room
But do they get out?
Actor Chris Evans, known for playing Captain America in the Marvel films, has surprised fans in Boston with an escape room.
Assuming his well-known character Captain America Chris spoke to people in a comic shop 'through' a Captain America toy, asking them if they were up for a challenge.
First up was a young child with his mum, who immediately replied, "no", however everyone else seemed up for it, despite not knowing what it was at that point.
Once agreeing to the challenge they were told that their mission was to take down the 'secret hydra base', also known as the comic book shop they were in.
Their first challenge towards completing the mission was to find a four digit code, which was easier said than done, despite there being a massive sign above the door with the code on it.
See how the unsuspecting shoppers got on in the video below and whether they finally got to meet the man behind the voice.
WATCH: Chris Evans surprises fans in the comic book shop »
Chris filmed this video to promote a competition he is running to raise money for Christopher’s Haven. Christopher's Haven is a charity which helps children being treated for cancer and their families. You can find out more information here.