Complex sentence: Prior to joining the Rescue Rangers, Monty traveled in the company of Zipper, the enthusiastic fly who also joined the team and Gadget Hackwrench's father up until "The Zanzibar Incident" when Monty and Gadget's dad inexplicably parted ways.
Split into simpler sentences: Prior to joining the Rescue Rangers, Monty traveled in the company of Zipper, the enthusiastic fly who also joined the team. He was also compatriots with Gadget Hackwrench's father Geegaw up until "The Zanzibar Incident" when Monty and Geegaw inexplicably parted ways.