Madam Secretary (2014– )
7 user

Thin Ice 

While the Secretary attends a summit intended to resolve territorial claims on the North Pole, an activist group detonates a bomb, and Russia is behind it. Henry helps a student through a hard decision.


Félix Enríquez Alcalá (as Felix Alcala)


Barbara Hall (created by), Moira Kirland | 1 more credit »




Episode cast overview, first billed only:
Téa Leoni ... Elizabeth McCord
Tim Daly ... Henry McCord
Keith Carradine ... President Conrad Dalton
Patina Miller ... Daisy Grant
Geoffrey Arend ... Matt Mahoney
Erich Bergen ... Blake Moran
Sebastian Arcelus ... Jay Whitman
Kathrine Herzer ... Alison McCord (credit only)
Evan Roe ... Jason McCord
Wallis Currie-Wood ... Stephanie 'Stevie' McCord
Zeljko Ivanek ... Russell Jackson (credit only)
Sara Ramirez ... Kat Sandoval
Sam Underwood ... Andrew Hill
Tony Plana ... Admiral Ray Parker
Johanna Day ... Admiral Ellen Hill


Elizabeth is attending a summit in Montreal to resolve territorial claims of the North Pole when an activist group detonates a bomb and she can't locate Jason and Piper. Also, things take a turn for the worse when Elizabeth learns that Russia was involved in the bombing, and Henry helps one of his students work through a difficult decision.

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Release Date:

29 April 2018 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
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Did You Know?


Thin Ice is also the name of an episode in Peter Capaldi's final season of Doctor Who. Not only that the Madam Secretary episode came on April 29 2018 exactly a year after its Doctor Who namesake came on April 29 2017. See more »

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User Reviews

Fact Check re: Nuclear Energy
30 April 2018 | by golferbantaSee all my reviews

In the Thin Ice episode, Blake makes a statement in conversation with Kat that (paraphrasing), 'zero Americans have died in commercial nuclear power accidents since World War II'. This may well NOT be true, as Dr. Steven Goldenberg of Penn State University Hershey Medical Center, Hershey, Pennsylvania, published a study in 2017 documenting that DNA from thyroid cancer patients who lived in area surrounding Three Mile Island showed DNA markers that were distinct from DNA of thyroid cancer patients who did not live in area of TMI. An increased number of thyroid cancer patients were diagnosed & died in the area subsequent to the TMI accident.

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