The Equalizer S04E15 - Starfire

A strange reclusive man(Michael Moriarity) calling himself "Seti" and claiming to be an alien from outer space has befriended a young girl, Amber. this episode by telling her he is being followed by other aliens bent on killing him. He shows her a strange futuristic device and has her promise to keep it hidden and safe after his imminent death. Amber contacts McCall whom, touched by her compassionate sincerity, discovers that "Seti" is actually a highly respected top secret aerospace engineer, and that he is being targeted by no less than Company assassins.