该剧根据北欧剧集《The Bridge》改编，第一季为10集。故事描述英法海底隧道分界线上惊现一个法国政客的尸体，由此引发了一场席卷整个欧洲的政治危机。英法各自派出一名侦探（Stephen Dillane, Clemence Poesy）调查此事，他们发现凶手试图将现代社会「道德沦丧」的现象最大化。
边隧谜案 (季节 2)
Episode 1 (集 1) 8.0
播出日期: 2016-03-07
运行时间: 50 min
概述: Elise Wasserman and Karl Roebuck investigate when a couple are abducted from the Channel Tunnel in front of their young daughter. Events take a dramatic turn when a plane crashes into the Channel.
Episode 2 (集 2) 9.0
播出日期: 2016-03-07
运行时间: 47 min
概述: The hunt for Madeleine becomes a matter of international urgency but Elise's investigation slows as she is forced to keep new evidence from Karl. Further links between the abduction and plane clash are discovered.
Episode 3 (集 3) 8.0
播出日期: 2016-03-14
运行时间: 47 min
概述: As the investigation continues and terrorists plan a further attack in France, a man comes forward with links to Robert. Elise uncovers disturbing facts about Eryka's past and Karl follows a hunch.
Episode 4 (集 4) 8.5
播出日期: 2016-03-14
运行时间: 46 min
概述: Karl and Elise receive a tip-off from a woman they believe knows Robert Fournier's whereabouts. But can she be trusted?
Episode 5 (集 5) 8.5
播出日期: 2016-03-21
运行时间: 48 min
概述: An unexpected revelation threatens to turn Karl's life upside-down. Meanwhile, Eryka reaches out to Elise and Rosa offers the team a cryptic clue.
Episode 6 (集 6) 8.5
播出日期: 2016-03-21
运行时间: 48 min
概述: An anonymous package gives Karl his biggest breakthrough in the case yet. Plus, the investigating team receive a clear and violent warning.
Episode 7 (集 7) 5.0
播出日期: 2016-03-28
运行时间: 48 min
概述: The team are forced to strike a deal with Vanessa. Meanwhile, someone tries to warn Karl off the case and Elise crosses a line she may quickly come to regret.
Episode 8 (集 8) 8.5
播出日期: 2016-03-28
运行时间: 50 min
概述: A lethal attack is launched and Elise and Karl's lives are thrown into jeopardy as the second series of the gripping crime drama ends in a nail-biting showdown.
季
集 10
集 8
集 6