The group are travelling on a ship towards Myra. Whilst doing so, various things go wrong. Give one player a token. The group describe what they were doing on the ship and how the journey was progressing. At any point, the player with the token can play it to interject and narrate an event which happened, which created a problem. This can be anything, like the ship being searched for contraband to the engine exploding, or the air filters failing or a murder happening on the ship.
At that point, each player without the token rolls their d12. Whomever rolls highest takes the token for the next interjection in the story.
The group then have to say how they dealt with what happened, and how the conflict was resolved.
Inspired by the improv game "Evil Twin", and the Apollo 13 space mission