Jez and Kylie go under cover on a notorious housing estate to investigate a scam involving the sale of counterfeit radiation sickness medication. Police officers question Rob about the death of a fellow medical student at the time of the London bomb. Rachel and Charlie try to uncover the identity of the traitor within MI5.
| Name | Type | Role | |
|---|---|---|---|
| Ben Schiffer | Writer | ||
| Piers Mettrick | Guest Star | ||
| Andrew Pollard | Guest Star | ||
| Nathaniel Robinson | Guest Star | ||
| Lorraine Burroughs | Guest Star | ||
| Paul-Michael Giblin | Guest Star | ||
| Craig Broad | Guest Star | ||
| John Lyons | Guest Star | ||
| Don Klass | Guest Star | ||
| Peter Foster | Guest Star | ||
| Gordon Patrick | Guest Star | ||
| Johann Myers | Guest Star | ||
| Nichola Burley | Guest Star | ||
| James McGlynn | Guest Star | ||
| Jody Latham | Guest Star | ||
| James Wood | Guest Star | ||
| Josh Brown | Guest Star | ||
| Mat Whitecross | Director |