In The Tinder Box Clarke (Eliza Taylor) makes a desperate plea with a former allied force in an attempt to avoid a war and ensure the survival of her people.
Bob Morley, Paige Turco, Marie Avgeropoulos, Devon Bostick, Lindsey Morgan, Christopher Larkin, Richard Harmon, Zach McGowan, Isaiah Washington and Henry Ian Cusick also star.
John F. Showalter directed the episode written by Morgan Gendel.
Series: The 100 Season 4 Episode 5
Airdate: 1 March 2017 at 9.00pm on The CW