Isaac Cooper is falsely framed by the puppet regime as a traitor to his party. With no way to prove his innocence, he takes the initiative to infiltrate the puppet government. After overcoming numerous obstacles, he finally becomes an undercover agent for the party's Mapleton Special Ops Unit. Facing immense pressure, Isaac engages in a battle of wits with the head of the Mapleton Special Ops, and the Japanese military advisor, seizing the opportunity to expose the real traitor.
Verena, undercover as Joanna, returns to find her kidnapped child. In the Stephen household, Ingrid targets Joanna and attempts murder. Isiah supports Verena. In a complex plot, Joanna exposes the Stephens' involvement, saving Zelig from Ingrid's schemes. Verena's true identity is revealed after a series of intense events.