The Mole

Summary

Harry is imprisoned and accused by MI5 of being the Russian mole. Lucas disappears to Moscow in a bid to gather intelligence and get to the bottom of Harry's arrest, whilst the rest of the team tries to prove his innocence on the Grid. But with so much evidence against him and a traitor among the team, things aren't looking good for Harry.

Guest stars

• Alex Lanipekun as Ben Kaplan
• Richard Johnson as Bernard Qualtrough
• Robert Glenister as Home Secretary
• Robert East as Richard Dolby
• Alan Williams as Charles Grady
• Kika Markham as Maria Korachevsky
• Dolya Gavanski as Katerina