Dogs snicker and cats flatten their ears as Lashonda and Topher walk down the aisle, but the outside world can't change their love. When a feline scientist and canine comedian start their life together in Old York, the judgement of their friends and family is only the first hurdle they have to face. As Lashonda continues her research and Topher climbs the ladder of fame, their quest for happiness takes them to the otter seastead of Friedan Isle where Dr. Flockhart, a rogue scientist, operates outside the laws of the mainland and promises to make their dreams come true. If Dr. Flockhart succeeds, the nature of their society may be changed forever.