In Plain Sight (2008) - 1x02 - Hoosier Daddy

Leo Billups witnessed a drug-related murder that involved the Cruz family, one of the most powerful drug families in the country. It's a common enough story in WITSEC. What sets this one apart is that the person he saw murdered was his mother... and Leo is 8 years old.

Because his father is one of the people Leo is testifying against, Mary places him in the care of another WITSEC family. Just when it seems like everything's going to work out perfectly, Leo's father sues for custody, claiming the Federal government had no right to take Leo in the first place.

Now, Mary must find a way to keep Leo away from his father and safe from the Cruz family.