After a back-breaking day of farm chores, all Grug and Phil want is a slice of pie, but with only one slice left, both argue about who deserves it more.
Dawn is bummed when an injury prevents her from joining the Croods and Bettermans to a trip to Fizzy Falls, but when Thunk recruits her on his quest for an ancient stash of legendary snacks, she can't resist joining the treasure hunt.
When Phil can't convince Hope, Grug, and Ugga that the treehouse is more impressive than the new subterranean cave Grug discovered, he sets out to destroy the cave.