Cat is a solitary animal, but as his home is devastated by a great flood, he finds refuge on a boat populated by various species, and will have to team up with them despite their differences. In the lonesome boat sailing through mystical overflowed landscapes, they navigate the challenges and dangers of adapting to this new world.

A mysterious portal pulls four misfits into the Overworld, a bizarre, cubic wonderland that thrives on imagination. To get back home, they'll have to master the terrain while embarking on a magical quest with an unexpected crafter named Steve.