The Tip-Off

Summary

With Lucas back within MI5 he reveals that the Russians interrogated him about Operation Sugar Horse, the most secret ongoing spy operation MI5 ever had. If the Russians know about it, then MI5 has a very high level mole. Harry seeks out his mentor, The Spycatcher, to help him find the mole. Ben is undercover with an Al-Qaeda cell; they are planning to bomb London and what looks like a dry run unexpectedly turns live.

Guest stars

• Alex Lanipekun as Ben Kaplan
• Richard Johnson as Bernard Qualtrough
• Robert Glenister as Home Secretary
• Robert East as Richard Dolby
• Ariyon Bakare as Nadif Abdelrashid
• Emilio Doorgasingh as Marlin
• Tariq Jordan as Jawad
• Leon Jan as Faisal