Walker 1x5 Duke Season 1 Season 1 18 EpisodesSeason 2 1 Episodes 1x1 - Pilot 1x2 - Back in the Saddle 1x3 - Bobble Head 1x4 - Don't Fence Me In 1x5 - Duke 1x6 - Bar None 1x7 - Tracks 1x8 - Fine Is a Four Letter Word 1x9 - Rule Number 17 1x10 - Encore 1x11 - Freedom 1x12 - A Tale of Two Families 1x13 - Defend the Ranch 1x14 - Mehar's Jacket 1x15 - Four Stones in Hand 1x16 - Bad Apples 1x17 - Episode 17 1x18 - Episode 18 Walker is forced to resume his undercover identity to keep his family safe. Micki gets caught up in Walker's old case. August threatens to blow his father's cover, and Trey starts his new job.