What happens in the world of our pets the moment we step outside our doors? You would be surprised!
Max (Patton Oswalt) faces some major changes after his owner Katie (Ellie Kemper) gets married and now has a child. On a family trip to the countryside, Max meets a farm dog named Rooster (Harrison Ford), and both attempt to overcome his fears.
Meanwhile, Gidget (Jenny Slate) tries to rescue Max's favourite toy from a cat-packed apartment, and Snowball (Kevin Hart) sets on a mission to free a white tiger named Hu (Nick Kroll) from a circus.