Things get tense at Catherine’s birthday party when a drunk Daniel reveals a different version of past events with Becky. Catherine’s fears grow when she learns that Tommy has been…

Catherine sinks into a deep depression as she learns that Tommy is still at large. The net finally closes in on Kevin.

Catherine’s search for Tommy gains momentum when she receives a tip-off regarding his whereabouts. Helen absorbs the shock of hearing that Ann has been abducted.

Jamie meets a distant relative. Daenerys receives an invitation to the House of the Undying. Theon leads a search party. Jon loses his way in the wilderness. Cersei counsels Sansa.

In the wake of a bloody purge in the capital, Tyrion chastens Cersei for alienating the king’s subjects. On the road north, Arya shares a secret with Gendry, a Night’s…

As Robb Stark and his northern army continue the war against the Lannisters, Tyrion arrives in King’s Landing to counsel Joffrey and temper the young king’s excesses. On the island…

Valery Legasov, Boris Shcherbina and Ulana Khomyuk risk their lives and reputations to expose the truth about Chernobyl.

With untold millions at risk after the Chernobyl explosion, nuclear physicist Ulana Khomyuk makes a desperate attempt to reach Valery Legasov, a leading Soviet nuclear physicist, and warn him about…

April 26, 1986, Ukrainian SSR. Plant workers and firefighters put their lives on the line to control a catastrophic 1986 explosion at a Soviet nuclear power plant.