Episode 1 | Ur kurs

Episode 2 | Håll gränsen

Swedish PM Fälldin convenes government/military as Soviet sub crew faces crisis. Commander Lagercrantz weighs counterattack. Peskov ordered to sabotage if Swedes board. International tensions rise over sub incident.

Episode 3 | Tyst diplomati

Commander Lagercrantz, Martinsson plan unauthorized approach to suspected nuclear submarine. Expert brought in. Hammarberg leads operation. Peskov threatens detonation if Swedes near sub.

Episode 4 | O kapten, min kapten

Swedish PM and Soviet ambassador scheme to install radio mast on submarine. Military commander has ulterior motives. Brezhnev navigates crisis with KGB aid. Conflicting agendas amidst Cold War tensions.

Episode 5 | Kalla kriget

Episode 6 | Hem, ljuva hem