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"" is a humorous story with a serious message of family and forgiveness. After his father stormed out of his grandfather's house and out of his life, young Bobby was raised by his grandparents. Now grown, Detective Robert Whitmore is in for a surprise when he is assigned a new partner - his grandfather, whom he still blames for the loss of his father. Due to a clerical error Grandpa, a retired detective, has been forced out of retirement after twenty years. As the two generations try to solve an increasingly difficult case of the biggest, baddest, most brazen thief the department has ever seen, Whitmore is forced to deal not only with Grandpa, but with his feelings of bitterness and his own standing before God. is a humorous story with a serious message of family and forgiveness.

How to Watch My Grandpa Detective Legally and Safely

If you want to stream My Grandpa Detective through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry My Grandpa Detective films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.