When Roland's wife Emma leaves him with their teenage daughter Mia who barely notices him and Beattie, the dog he never wanted in the first place, he's determined to cope brilliantly. But when Beattie disappears and turns up at the local dog park, Roland meets the unbearably optimistic Samantha and her mismatched, life-loving group of dog-parkers. As Roland begrudgingly keeps returning to the park, he comes to realise he might actually need a community to belong to.