Episode 49 of "JAG"
s03e12 Someone to Watch over Annie
Title: Someone to Watch over Annie
Original Air Date: 01/06/1998 on CBS
Plot Outline:
Annie Pendry, a widow, comes to Harm for help after her young son, Josh, witnessed a murder while on a class trip to Andrews Air Force Base. After Harm and Josh are the targets of a drive-by shooting, Harm moves Josh and Annie into his apartment -- and into his life. Harm discovers that the original crime and the drive-by shooting are tied to a ruthless international arms dealer, but not before Josh is kidnapped by the dealer in order to silence him as a witness.