Episode 87 of "MacGyver"
s05e04 Cease Fire

During some tough negotiations between two neighbouring states, one side plants a sniper in the vincinity. When Mac discovers the sniper, fights him, but loses the man, the accusations go out against Mac. Wounded, he is forced to run, and hide at a private girls´ school, where one of the young ladies becomes his only hope to prevent further bloodshed. But the young girl has her own issues, and the assassination attemts won´t stop until the targeted delegate is dead.