SpoilerTV Image Archive | Gallery | Madam Secretary | Season 4 | Promotional Episode Photos | Episode 4.19 - Thin Ice | "Thin Ice" -- 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, on MADAM SECRETARY, Sunday, April 29 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured Sebastian Arcelus as Jay Whitman Photo: David M. Russell/CBS é2018 CBS Broadcasting, Inc. All Rights Reserved
