The documentary series continues, highlighting how newborn pups' simple desire for sustenance from their mother evolves into a more complex set of emotions, covering everything from relationships with litter-mates to their bond with humans. Dexter the dalmatian cultivates a strong early attachment to his owner via massage sessions, while Loki the weimaraner discovers that - even though he may have been removed from his litter - a playful child can make for the perfect companion.