When the girl he likes goes missing, Jake enlists the help of his grandpa and his WWII buddies.
Currently, you can only stream Undercover Grandpa on Hoopla in the the United States.
You can buy or rent Undercover Grandpa on the following streaming services in the the United States: Amazon, Vudu and Google Play.
Undercover Grandpa was released 7 years ago in 2017.
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