Children's animated adventure sequel. While Kate (voiced by Hayden Panettiere) and Humphrey (Justin Long) and their three young wolf pups Stinky (Kate Higgins), Claudette (Lindsay Torrance) and Runt (Liza West) are getting ready for the approaching winter, Runt mysteriously disappears without trace. With the snow about to fall the pack must set out on an adventure to find Runt and bring him home before it's too late.