The plot follows detectives Karl Roebuck and Elise Wasserman working together to find a serial killer who left the upper-half body of a French politician and the lower-half of a British prostitute in the Channel Tunnel, at the midpoint between France and the UK. They later learn that the killer—who comes to be nicknamed the "Truth Terrorist"—is on a moral crusade to highlight many social problems, terrorising both countries in the process
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Best Episodes of The Tunnel
Episode 6
S3 Ep6
8.0
18th Jan 2018
In the final episode, Karl and Elise face a tense and gripping showdown with the Pied Piper, while the truth about the Moreau abduction is revealed at last.
Episode 10
S1 Ep10
7.8
9th Dec 2013
The tense crime drama comes to an unmissable climax as Karl falls apart when the Truth Terrorist's change of direction becomes too much to bear.
Episode 9
S1 Ep9
7.8
9th Dec 2013
In the cross-Channel crime thriller's penultimate instalment, events take a nasty turn for Karl as police get within a hair's breadth of catching the killer.
Episode 8
S2 Ep8
7.8
28th Mar 2016
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.
Episode 4
S2 Ep4
7.8
14th Mar 2016
Karl and Elise receive a tip-off from a woman they believe knows Robert Fournier's whereabouts. But can she be trusted?
Episode 7
S2 Ep7
7.7
28th Mar 2016
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 7
S1 Ep7
7.7
27th Nov 2013
Police think they may finally have a lead as the serial killer's actions escalate in his fifth and final 'truth', inciting mob violence in England and France.
Worst Episodes of The Tunnel
Episode 2
S3 Ep2
7.3
21st Dec 2017
A shocking discovery is made at an immigration removal centre alongside a sinister animation containing a hidden message.
Episode 1
S1 Ep1
7.4
16th Oct 2013
British and French detectives are brought together when a body is discovered inside the Channel Tunnel.
Episode 3
S1 Ep3
7.5
30th Oct 2013
The police face a race against time to identify and capture the killer as he steps up his campaign, targeting a further elderly victim in his 'moral' crusade.
Episode 1
S3 Ep1
7.5
14th Dec 2017
A burning fishing boat found on the Channel turns into a new case for Karl and Elise in the third and final chapter of the series.
Episode 4
S3 Ep4
7.5
4th Jan 2018
As a young mother-to-be helps Karl and Elise with their enquiries a new development threatens to tear the pair's partnership apart.
Episode 2
S1 Ep2
7.5
23rd Oct 2013
While the killer's second 'truth' unfolds, Stephen Beaumont crosses the paths of Karl and Elise once more.
Episode 5
S2 Ep5
7.5
21st Mar 2016
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.
The Tunnel Episode Guide
Episode 1
S1 Ep1
7.4
16th Oct 2013
British and French detectives are brought together when a body is discovered inside the Channel Tunnel.
Episode 2
S1 Ep2
7.5
23rd Oct 2013
While the killer's second 'truth' unfolds, Stephen Beaumont crosses the paths of Karl and Elise once more.
Episode 3
S1 Ep3
7.5
30th Oct 2013
The police face a race against time to identify and capture the killer as he steps up his campaign, targeting a further elderly victim in his 'moral' crusade.
Episode 4
S1 Ep4
7.6
6th Nov 2013
Karl and Elise battle to locate an elderly soldier before he freezes to death at the hands of the killer. Meanwhile, runaway teen Sophie puts her trust in Benji.
Episode 5
S1 Ep5
7.6
13th Nov 2013
The Truth Terrorist's third truth begins as Benji carries out his Samurai mission. The police hope to use teenage runaway Sophie to help trap the killer.
Episode 6
S1 Ep6
7.6
20th Nov 2013
As the killer's incendiary fourth truth begins, Karl and Elise's suspicions fall on Stephen Beaumont. A manhunt begins, but is he the correct suspect?
Episode 7
S1 Ep7
7.7
27th Nov 2013
Police think they may finally have a lead as the serial killer's actions escalate in his fifth and final 'truth', inciting mob violence in England and France.
Episode 8
S1 Ep8
7.7
2nd Dec 2013
French police capture but then lose the prime suspect before Elise mysteriously disappears. As Karl searches Danny's flat, things start to fall into place.
Episode 9
S1 Ep9
7.8
9th Dec 2013
In the cross-Channel crime thriller's penultimate instalment, events take a nasty turn for Karl as police get within a hair's breadth of catching the killer.
Episode 10
S1 Ep10
7.8
9th Dec 2013
The tense crime drama comes to an unmissable climax as Karl falls apart when the Truth Terrorist's change of direction becomes too much to bear.
