Genetically modified bull sharks attack Prague's waterways. Detective Kowalski, Dr. Novak, and Dr. Cerny uncover that Dr. Reef is responsible, seeking to weaponize marine life. They work together to infiltrate his lab, outsmart his defenses, and confront the threat.
| Actor | Role |
|---|---|
 Jeremy TichyJohn | John |
| IIggy UllaLisa | Lisa |
| AAllan KneefelRobert | Robert |
| AAleš KarelDr. Reefs | Dr. Reefs |
| MMike AckermanNicolas | Nicolas |
| NNikita DzhemesiukDr. David | Dr. David |
| NNicoletta GreyKatrina | Katrina |
| JJohana KoubováKlara | Klara |
| LLukáš VokounMichal | Michal |
| MMaria BohatyrovaLucy | Lucy |
| JJasmína HapkováMaria | Maria |
| LLuděk TvrdýAnatol | Anatol |
| DDenisa BassettováTraumatised Witness | Traumatised Witness |