Aunt Lucy's visit to London has kept the Browns on their toes and made them exhausted, so all are greatly relieved when Paddington sets out with his Aunt to do a little shopping. Little do they know they are looking for a gift to thank Mr. Brown for being so kind to Paddington, and it is a gift that will land them smack dab in the middle of the Thames in need of rescue by the harbor patrol.

Paddington and Mr. Gruber enroll in a military school, and are rewarded for catching a pair of burglars.