• Cast member Grant Gustin attends a panel for The CW television series "The Flash"

Cast member Grant Gustin attends a panel for The CW television series "The Flash" (Photo : REUTERS/Mario Anzuoni)

"The Flash" lead star Grant Gustin recently teased the upcoming 14th episode of the hit The CW series.

On his Twitter account, the actor confirmed that they just finished filming the said episode. He also urged fans to watch because something huge will happen to the characters of the show.

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"One more day of shooting before our cast & crew finally take a well deserved break. Halfway through 214, which will blow your minds. Truly," he tweeted.

Meanwhile, according to TV Line, a new character named Geomancer or Adam Fells (Adam Stafford) will appear in the same episode.

The villainous character is expected to make the lives of Barry Allen and the rest of Team Flash miserable.

Geomancer is described as a "dangerous meta-human with the unique ability to create earthquakes. Intent on destroying the Flash, Geomancer uses his powers to unleash a string of targeted earthquakes, optimistic that he'll draw out the Flash for a mano-a-mano fight to see who's the most powerful metahuman in Central City."

According to multiple publications, Stafford will first make an appearance on "The Flash" in episode 13.

As of late, it is unclear whether or not Gustin was referring to Stafford's appearance that will make episode 14 extra special compared to the previous episodes.

Meanwhile, "The Flash" season 2 will return to The CW on Jan. 19, 2016. The network released the synopsis for the said episode.

"After his intense fight with Zoom (voiced by Tony Todd), Barry Gustin must face Mirror Master. Wally (Keiynan Lonsdale) reveals a dark secret to Iris (Candice Patton)."