Ep. 7: Heinen tasks Keaton to investigate Seidel's death in Dresden, uncovering a Stasi plot involving a peach-scented poison.

In Dresden, Heinen asks Keaton to investigate Seidel's sudden death. Neighbor Mrs. Wagner notes a characteristic scent, while painter Ascott saw Seidel entering the building. A doctor reveals Seidel was a war veteran with a burn mark. Heinen states Seidel lacked the scent of death. Ascott recalls a man with an umbrella watching Seidel. The doctor confirms the burn was on the inner right arm. Wagner remembers a distinct peach scent at death. Heinen walks his dog Kurt and finds the man with a gas gun containing potassium cyanide under the umbrella. Kurt dies from fumes. Keaton chases the man, identified as Johan Kurten. Heinen and Seidel were East German informants, with Kurten as their Stasi supervisor. Seidel's burn covered a Schutzstaffel tattoo. Heinen admits government blackmail. Kurten acted after they were relieved of duty. Heinen mourns losing two friends while carrying Kurt.
Episodes
- Ep. 3 · Keaton investigates the Red Wind murders of Stefan's bodyguards and uncovers a tragic pact betrayal.
- Ep. 4 · Sendel entrusts Keaton with a briefcase containing a bomb and a message from Alexeyev.
- Ep. 5 · Keaton investigates suspicious board member deaths while staying at James Kelling's estate.
- Ep. 6 · Keaton rescues myopic artist Douglas from a Finchingfield building where Morris forces forgery.
- Ep. 7 · Heinen tasks Keaton to investigate Seidel's death in Dresden, uncovering a Stasi plot involving a peach-scented poison.
- Ep. 8 · Keaton investigates Kayoko Kida's past and recovers stolen evidence from Usami.
- Ep. 9 · Keaton investigates a missing student and a terrorist in Florence to secure a will.
- Ep. 10 · Keaton recounts his Cornwall childhood to Yuriko during a train journey.
- Ep. 11 · Yuriko helps Sachiko recover a stolen handbag containing a gift for her long-lost friend Paul Wilkins.