TaleSpin - Season 1 Episode 8

Everyone at Higher for Hire is working hard for a game hunter named MacKnee who wants his crate delivered. The crate contains a huge creature that gets big when it's wet and small when it's dry. Molly wants to play, but when she tries to get someone's attention it causes MacKnee's crate to fall off the pulleys and make a hole in the dock. The creature inside escapes through a small crack in the bottom of the crate and out the hole. Molly befriends the creature calling him Henry. She's able to keep him hidden from everyone since they're always occupied. But when MacKnee finds out his creature's missing, he forces everyone to aid in it's recapture, even when Henry starts to fly back to it's homeland with Molly on it's back.