A young Parisian couple are embarking on fertility treatment when the man, Antoine, becomes convinced he saw his sister in news footage from Syria. The same sister who supposedly died two years before. He makes a rash decision.

Three childhood friends from London, Iyad, Paul and Nasser enter the fray. Antoine finds himself in the middle of a fire fight and recalls the aftermath of Anna’s death. A dedicated Kurdish YPJ soldier, Sarya, is sent on a new mission.

The Jihadis are keen to prove their dedication to the caliphate but struggle to cut ties with their pasts and lives back home. After proving himself useful, an international crew of YPJ volunteers take Antoine under their wing.

Light is shed on what happened in Antoine’s family before Anna disappeared. In the present, Sarya gives Antoine weapons training and they begin to understand each other. ISIS mount a ferocious attack on a village.

Sarya’s past begins to come into focus as she finally lets her guard down with Antoine. The ISIS fighters seem to be on a roll and Nasser is rewarded with a high stakes introduction to ‘The Libyan’.

The mysterious Stanley turns up somewhere unexpected. More about Anna’s life after France is revealed.

Antoine makes a huge discovery and must make a crucial decision. Nasser, Paul and Iyad reach the capital of the Islamic State where Nasser does his best to protect his friends.

Antoine and Sarya’s unit get split up in the field. In the ISIS camp, Paul demands a reckoning. Stanley still has a few tricks up his sleeve.

In Texas, a woman makes a grim discovery through an ISIS propaganda clip. Meanwhile, in the Middle East, a daring rescue unfolds, and hidden truths emerge. Plus, a glimpse into a detention camp for abducted women.

Amid tensions at the YPJ camp, Anna refrains from giving Nisrine false hope, while a French journalist arrives in Syria. Jake's confession complicates things with Ellie as shifting alliances and tragedy fuel the unfolding drama.

As tensions rise, Sarya faces tough choices, Nisrine takes a bold step, and Ellie struggles with a life-changing decision. Nasser navigates uncertainty, while Max's search for answers intensifies, bringing him closer to the truth.

Ellie's journey takes an unexpected turn as suspicions about a possible connection with the FBI grow; a dangerous encounter forces her to make a fateful choice, while shifting loyalties blur the lines between trust and betrayal.

Ellie struggles with trust as tensions rise, while Sarya pushes for action despite risks. Max's search leads to danger, and Nasser plots his escape. As battle erupts, hidden agendas and perilous choices shape the conflict.

Power struggles and shifting loyalties shape the conflict as Sarya, Nisrine, and Nasser pursue their own missions. Ellie makes a fateful choice that defines her path, while Max becomes entangled in a dangerous revelation.

Sarya sacrifices everything to help Nisrin and free the kidnapped women; as ISIS searches for a traitor, the noose tightens around Nasser's neck.

Sarya and her comrades prepare to attack the Sabaya camp, but the wrong timing might lead to a catastrophe.