Ep. 10: Keaton recounts his Cornwall childhood to Yuriko during a train journey.

While traveling by train through Cornwall, Keaton tells Yuriko about his time in St Ives in 1967. Bus driver Christopher "Chris" Watkins predicted Keaton would become a master of life and warned him about local resentment toward wealthy outsiders. Keaton clashed with boys Dean, Ralph, and Phil, who were jealous of his stay at his grandmother's summer house. Chris once ejected a disruptive couple and a smoker named John from the bus. He showed Keaton a spot at Land's End where the sea sparkled red. Later, the boys invited Keaton to cross Bodmin Moor, despite Dean throwing out his water canteen. Keaton found water in an ancient tomb, forcing them to stay overnight. The next morning, the boys' mothers were relieved, but Dean accused Keaton of coercion. Chris arrived to vouch for Keaton and return him home. Chris took Keaton back to Land's End, where the sea sparkled green. In the present, Keaton reveals to Yuriko that Chris, the father of Dean, remarried his ex-wife Carol. Keaton still remembers the unforgettable color of the sea.
Episodes
- 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.
- Ep. 12 · Keaton investigates Edgar Fisher while Daniel dates Louise Brown, who manipulates events to protect Reed's estate.
- Ep. 13 · Keaton misses a university interview while Taihei and Pai Li defend a tiger from gunrunners.
- Ep. 14 · Chief Otter investigates James Wolf, a former Special Air Service member linked to multiple murders and mafia connections.