When a group of sloths arrives at the Grumpy River to enter a synchronized swimming competition, the Super Happy Party Bears decide to be their coaches! They arrange a slumber party to celebrate their team, but the sloths just . . . sleep. The residents of the Grumpy Woods can't help but notice the giant pile of snoozing sloths--they're taking over the woods! Mayor Quill plots to get rid of the sloths by shutting down the competition. . . until he unexpectedly gets the opportunity to show off his swimming moves. Illustrated in full color!