Today is vaccination day for Pat and Pat hates vaccination day to say the least! After many failed attempts at hiding, he has to face up to harsh reality. He comes across Victor at the veterinary clinic, who has come to vaccinate Tank, but the encounter turns into confrontation, when, to take revenge, Victor decides to set all the injured animals free and makes it look like Lola's doing. Pat sets out in search of the lost animals but has to try to avoid the short-sighted vet's vaccination shots.