Mighty Express (2020) Season 5 Episode 4 Diesel's Doghouse Delivery / Monkey Wrench Episode Title: Diesel's Doghouse Delivery / Monkey Wrench Episode Description: Diesel's Doghouse Delivery:Diesel the Dog is receiving a new doghouse after his old one gets wrecked in a game of catch, and Flicker is given the Mega Mission of delivering one custom built by Dusty and Brock. The only problem is Diesel doesn't want it dirty, but keeping it clean while in transit is easier said than done. Monkey Wrench:A stowaway monkey arrives in a banana shipment meant for Flicker, and Faye is tasked with taking him back to the jungle. However, she has little experience with dealing with monkeys, which comes to be problematic when the monkey steals Skipper's monkey wrench.