Bob’s attempt to use JP’s past against him becomes a game of cat and mouse, Laurent’s doubts about Nathalie boil over and Ferry issues an ultimatum.

When Nathalie’s run-in with Laurent leaves Bob’s case hanging by a thread, he bends the rules to the breaking point to motivate JP to make a deal.

Pushed to the brink by everything he’s done in pursuit of Ferry and the Bergers, Bob races to contain and cover up his various deceptions.

Valery Legasov and Soviet Deputy Prime Minister Boris Shcherbina consider using lunar rovers to remove radioactive debris, while Ulana Khomyuk faces government hurdles in determining the truth about the cause…