Lost in Space 3x6 Final Transmission Season 3 Season 1 10 EpisodesSeason 2 10 EpisodesSeason 3 8 Episodes 3x1 - Three Little Birds 3x2 - Contact 3x3 - The New Guy 3x4 - Nothing Left Behind 3x5 - Stuck 3x6 - Final Transmission 3x7 - Contingencies on Contingencies 3x8 - Trust The story of Don's run-in with SAR leads the Robinsons to an alarming realization. Will sneaks out on a dangerous solo mission.