'The Flash' season 3 episode 4 spoilers: Mirror Master makes his debut, teams up with villainous character Top

A promotional image for "The Flash" (Facebook/CWTheFlash)

Iconic comic book character Mirror Master (Grey Damon) makes his debut in the upcoming, brand-new installment of The CW’s “The Flash” season 3.

Titled “The New Rogues,” episode 4 features the said meta human appearing in the picture alongside his old partner Top (Ashley Rickards). The two will look for Snart, also known as Captain Cold (Wentworth Miller), to even the score between them.

Barry (Grant Gustin) will aid his fellow superhero in defeating the duo. As he continues to train Jesse (Violett Beane), the latter tags along in the quest. Although she is quick to join the chase, Jesse defies one of Barry’s orders which results in disastrous consequences.

According to ComicBookMovie, Barry will find himself trapped in a strange new dimension called mirrorverse created by the villainous character. It can be recalled that back in episode 3 “Magenta,” Alchemy (Tobin Bell) had been recruiting people with superpowers from the Flashpoint universe. It is suggested that Mirror Master may be one of them and will aim to create havoc and take over the metropolitan city eventually.

Down the line, episode 5 dubbed “Monster” sees the reunion of Caitlin (Danielle Panabaker) and her mother Dr. Tannhauser (Susan Walters). The daughter calls her mom for help in understanding her growing meta human powers, hoping that the renowned biomedical researcher can provide answers she is looking for.

However, when Dr. Tannhauser treats her like a test subject, Caitlin grows cold and brings up past wounds she is still carrying. It is predicted that the encounter will be emotional and dramatic causing a major blowout within the family.

Elsewhere, another mysterious meta human attacks Central City. The Scarlet Speedster tries to convince Julian (Tom Felton) to let him assist on the case. It remains to be seen if the new authority figure will allow him to do so.

Season 3 episode 4 of “The Flash” is slated to air on Tuesday, Oct. 25 at 8 p.m. ET. It will be followed by episode 5 on Nov. 1.