When a stolen French fishing boat is found adrift and on fire in the English channel, Karl believes the missing cargo consisted of trafficked children.

But without hard evidence, no-one cares enough to take him seriously; except of course his old friend Elise Wassermann. If anyone is going to understand that these missing children belong to someone, and that their lives are precious – Elise will.

As the hideous crimes enacted by the brutalised perpetrators build towards a desperate and dangerous endgame, a miscarriage of justice from Elise’s past shakes her to her core.

Earache’s wonderful William Ash reprises his role as Karl’s sidekick Detective Boleslaw ‘BB’ Borowski while the fabulous Felicity Montagu plays their boss Winnie Miles…

All episodes of The Tunnel: Vengeance are available exclusively on Sky Atlantic and Now TV.