When a baby wolf named Willa is having trouble howling at the moon, Team Umizoomi and Blazey want to cheer her up and get her home to Moonlight Mountain for her sleepover with them.
- Fountain Headquarters
- The Jungle
- Moonlight Mountain
- Willa the Wolf (Willa and Summer)
- We'll Get You Home (Milli, Geo, Bot, and Summer)
- Willa's Lament (Willa)
- Slumber Party at the Moon (Milli, Geo, Bot, Blazey, Summer, and Willa