Aired: 10/21/2000
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.
Aired: 10/28/2000
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.
Aired: 11/4/2000
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.
Aired: 11/11/2000
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.