King and Kayla are playing fetch with their friends, Jillian and Thor. Jillian throws King's favorite ball too hard, and now it's gone missing! King and Kayla must put together the clues to figure out where it went---and who has it.
Buddy the dog risks everything when he leaves his new family to investigate what happened to Kayla and her father, his beloved former owners, by slipping into a van Kayla's uncle is using to empty her house in the middle of the night.