Mike got close with Werner, Mike vouched for Werner, and now Mike must clean up Werner's mistake. Unfortunately, in Gus's world, clean-up can be deadly.

Go Inside the Season 4 Finale With the Cast and Creators 

"Mike knows that the only way he can regain Gus's trust is to do this horrible job," explains co-executive producer Diane Mercer. Adds executive producer Tom Schnauz: "It's a bit of weird compassion that Mike decides that he's the one to pull the trigger instead of Gus's men. Better do it when he's looking at the stars, just put a bullet in the back of his head."

Hear what else the cast and creators have to say in the all-new behind-the-scenes video. Plus, catch the full Season 4 finale available now on amc.com and the AMC app for mobile, Fire TV, Xbox One, Apple TV, Roku and Chromecast.

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