How We Get to Peace

Secret Weapon is the Eighth episode of the fifth season of The 100. It is the sixty-sixth episode overall.

Starring

 * Eliza Taylor as Clarke Griffin
 * Paige Turco as Abigail Griffin
 * Bob Morley as Bellamy Blake
 * Marie Avgeropoulos as Octavia Blake
 * Christopher Larkin as Monty Green
 * Lindsey Morgan as Raven Reyes
 * Richard Harmon as John Murphy
 * Henry Ian Cusick as Marcus Kane
 * Tasya Teles as Echo