In the Arctic Ocean, friends Sparky and Benny find out they are about to lose their homes.

Their parents tell them not to worry and don't give them any more information. But they are worried -- isn't losing their homes a huge deal? Why are the adults not doing anything, and what are they scared of? In Sparky & Benny's Big Home Mystery, the kid whales are on a mission to find out why they are losing their homes, who is responsible, and how they can stop it from happening.