Basically, the characters (who are all thirteen) are playing a computer game called SBURB that has the capacity to alter reality. (Their reality already runs on somewhat different rules to ours, in a geeky coding meta way.) As they keep playing, it turns out that the game is tied to the end of the world, which they may be destined to prevent, or maybe not.

"Wait, no, wait, don't shoot!" Belle cried, hopping and untangling a cord from her foot as she followed the robot into the workshop. "Chip, it's all right, she's the ship's security officer. She's a friend."

In which Jane has a crush and a dream, Mulan is determined but asleep on her feet, and Shang is possibly stalking Aladdin.

Kanaya is usually good at offering caring and reasonable comfort. But this, right now: this she isn't equipped for.