The koalas are calling! On their journey through Australia, the Palmers experience plenty of adventures. A detour to see the koalas is, of course, a must. However, during their time at the animal rescue center, they don't see a single one. Disappointment sets in for tech whiz Rick, bookworm Liv, and whirlwind Lu. Until, finally, a koala in danger is reported. The Palmers immediately set off and must then find a safe home for the animal. But the Palmer kids know: Together, we can do anything!.