When Phineas and Ferb go to Seattle with Isabella and Buford they find Boosnacer has got into trouble so Phineas and Ferb use police costumes but then Phineas and Ferb get arrestead and now it's up to Isabella, Buford, and Boosnacer to rescue Phineas and Ferb and clear Boosnacer's good name meanwhile Doofenshmirtz finds his brother in Seattle.