Athena (Carrie-Anne Moss) challenges Milo's (Marshall Allman) ethics and is shocked when he reveals his real plan. Mia's (Gemma Chan) surprise return has ramifications for the Hawkins family. Mattie (Lucy Carless) finds Leo (Colin Morgan) but can she trust him with her secret? Max (Ivanno Jeremiah) resolves to begin a new community of Synths; when he learns how far Leo is prepared to go to complete his mission, he takes matters into his own hands.