As "The Flash" races towards the finish line of its first season, the CW show's uber-mystery surrounding Harrison Wells and the Reverse Flash is kicking into a higher gear with each passing episode.

Last night, following the debut of Emily Kinney as Barry Allen's latest rogue, the Bug-Eyed Bandit, the series aired the following teaser -- titled "Who Is Harrison Wells?" -- that promises to follow up on Cisco's disturbing visions of his own death at the hands of his mentor with big revelations about the man who killed Barry's mother.

RELATED: "The Flash" Recap - An "All Star Team Up" Against the Bug-Eyed Bandit

"The Flash" airs Tuesday nights on The CW at 8:00 pm.