Under Investigation (2026): cast, story & where to watch
2026 · Series · ★ 6
Released in 2026, Under Investigation is a documentary and crime series.
What it’s about. Former police officer Johnny Brenna and his investigation team are tasked with solving cases that the police have closed.
Who’s in it. Under Investigation stars Johnny Brenna as Self.
How it landed. With an audience score of 6.0/10, Under Investigation has drawn a solid, mixed-to-positive response.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Under Investigation page.
If you liked it. Fans of Under Investigation tend to enjoy Cosmos, Planet Earth, Planet Earth II and Vikings.
Frequently asked
- Where can I watch Under Investigation (2026)?
- Streaming, rental and purchase options for Under Investigation change frequently. Check our where-to-watch page for the latest availability in your country.
- Is Under Investigation worth watching?
- Under Investigation holds an audience score of 6.0 out of 10, and is a strong pick if you enjoy documentary and crime. Reactions are mixed, so it may depend on taste.
- Who stars in Under Investigation?
- Under Investigation stars Johnny Brenna.
- When was Under Investigation released?
- Under Investigation was released in 2026.