The Enterprise responds to a distress call from Rana IV, a Federation colony that is under attack from an unknown alien ship. When they arrive, they find the entire surface of the planet destroyed, save for a single house and two occupants.

[Note: This is episode is on my top ten list of STTNG episodes.]

Director: Les Landau.

Teleplay by Michael I. Wagner.

Producers: Gene Roddenberry, Hans Beimler, Rick Berman, Peter Lauritson, David Livingston and Richard Manning.

Composer: Dennis McCarthy.