In the future, an outbreak of canine flu leads the mayor of a Japanese city to banish all dogs to an island used as a garbage dump. The outcasts must soon embark on an epic journey when a 12-year-old boy arrives on the island to find his beloved pet.

Three American brothers who have not spoken to each other in a year set off on a train voyage across India with a plan to find themselves and bond with each other -- to become brothers again like they used to be. Their "spiritual quest", however, veers rapidly off-course (due to events involving over-the-counter pain killers, Indian cough syrup, and pepper spray).