Season 3 continues the preschool series' focus on lighthearted adventures in the dog town of Pawston, with the central premise revolving around Tag, Scooch, and friends welcoming a new cat family and showing them around. Episodes such as 'Cattitude Adjustment' feature the dogs hosting a welcome party for the new fire chief (a cat) and explicitly learning that 'friendship can cross even the biggest differences,' while 'Kitty in the City' and 'Don't Go, Cat.

Go!' center on building bonds with the cat character Kit through shared activities and an emotional farewell. These elements introduce species-based inclusion as a subplot driver but remain incidental to the core storytelling of problem-solving, teamwork, and everyday fun, consistent with the original book's whimsical tone and not framed through modern activist lenses.