Watch The Flash Season 1 Episode 15
Mark Mardon, having survived his apparent death during the black-matter explosion, returns seeking revenge on Joe for the death of his brother Clyde… and has the same weather-manipulation powers as his deceased sibling.
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Series: The Flash
Director: Thor Freudenthal
Guest Star: Chad Rook, Liam McIntyre, Malese Jow, Patrick Sabongui, Roger Howarth
Episode Title: Out of Time
Air Date: 2015-03-17