Other notable series writers included Colin Brake and Stephen Gallagher, who also served as a consultant on seasons two and three.

Two episodes ("Bugged Wheat" and "Hollow Man"), were written by Alfred Gough and Miles Millar, who went on to create the series Smallville and Wednesday.

After the IRA bombing of the South Quay Plaza, the crew had to travel further to find intact buildings for exterior locations.

The programme came close to cancellation at the conclusion of its third series, but due to an exciting cliffhanger ending deliberately included by the production team, and strong foreign sales, a fourth was commissioned.

The final series suffered from being moved to an earlier timeslot on Saturday evenings, and for only having the first eight of its produced ten episodes scheduled for broadcast.

[2] Coupled with the Omagh Bombing forcing the BBC to postpone the series for a week, this meant that the concluding three episodes would not be broadcast until a year later.

When Gizmos are hired to provide security for the launch of a new sports car, they instead become caught up in the theft of a prototype nuclear-powered stealth tank, which could destroy the city if not recovered.