S5·E13 Where's Willy?

On the mountain, Gabe's two-yarder plan goes further off track when one crew member defects to the other team. Big Gun races their tightest deadline yet, while in Alaska, Joe and the new guy get into it. On the river, an accident could take S&S out of the Log-Off for good, and in the swamp, Shelby's trusty assistant Willy goes missing.