When an alien attacks National City, Supergirl and the DEO learn the alien is a Phorian, an otherwise peaceful race with telekinetic powers. Guardian gets a lead on the Phorian's address but instead of finding the culprit, he finds a very scared boy named Marcus. Marcus will only trust James so it is up to Guardian to stop the attacks on the city. Rhea's plan escalates.
|Title||Supergirl - Season 2 Episode 20 : City of Lost Children|
|Genres||Action, Adventure, Drama, Science Fiction|
|Air Date||Jan 01, 1970|
|Total Episode(s) on All Seasons||103|
|Networks||CBS, The CW|