Lausman is enjoying nix life and Jara, who is trying to track him down, is humiliated when a picture of her quarry, taken by a tourist, appears in the paper. Trpelka nearly drowns during a stake-out.

Jara breaks into a boat belonging to Lausman's protectors Eduard and Johana, steals some strange food items and sends them off to the lab. Dr Jech is confused by the results of his tests on Lausman.

Eduard reveals he knows how to access the waters of Vysehrad. Magda meets in secret with Bishop Laska, who tells her that if Sikorsky fails to exterminate Lausman, it will be up to her to do the job.

Jara has lost interest in the nix case since being hypnotised by Magda. The bottled water scheme is jeopardised. The magic water is revealed to grant a youthful appearance, but there are side-effects.

A tank of algae is poured into the lake that supplies water to Prague, causing a humanitarian catastrophe. Jara is cured of her distraction, and Magda plots to become the next chairman of the council.

Magda tells Lausman she knows where the rest of the ancient scrolls are, but when he takes the bait and volunteers to retrieve them, peril awaits. Jara's hot on his heels, but will she arrive in time?