Browse all 5 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.
Episode 1
An illegal arms racket is discovered after a suspicious container at Tilbury Docks explodes, almost killing Christie. A new elite squad known as Indigo has been formed and Christie is invited to join, leaving Murray frustrated at being passed over.
Episode 2
Siblings Rick and Jenny Foster supply deadly ecstasy tablets in the clubs of Ibiza. The pair are so hard to catch that Indigo suspect there's a mole tipping them off.
Episode 3
A poisonous toad smuggling operation causes a series of deaths to Indigo. An international drugs baron has an old score to settle with team leader Vaughan.
Episode 4
When a teenage girl goes missing, an online pedophile ring are the chief suspects. An explosion kills the main suspect. The team race to find the girl before she is killed.
Episode 5
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