In the next episode of The CW series The 100, entitled “The Queen’s Gambit,” the building tension at Sanctum is ready to boil over, while Octavia (Marie Avgeropoulos), Diyoza (Ivana Milicevic) and Echo (Tasya Teles) struggle to understand what the residents of Bardo want with them. The episode also marks the directorial debut of actress Lindsey Morgan, who joins the ranks alongside co-stars Henry Ian Cusick and Bob Morley. During this 1-on-1 phone interview with Collider, Lindsey Morgan talked about what it feels like when you know you’re shooting the final season of a long-…