Complex sentence: Raph and Keno defy Splinter's orders and implant Keno into the Foot Clan to find their hideout, they are caught and Raph is captured while Keno escapes to warn the others.
Split into simpler sentences: Raph and Keno defy Splinter's orders and implant Keno into the Foot Clan to find their hideout. However, they are caught and Raph is captured, while Keno escapes to warn the others.