WARNING: This article may contain spoilers for The Flash season 6 episode 15. Read at your own risk.
The Flash season 6 episode 15 is scheduled to arrive within a few weeks on The CW, with the title "The Exorcism of Nash Wells." Within this episode, a dangerous new meta arrives in Central City, and she may bring some chaos to some of the characters.
In The Flash season 6 episode 15, The Flash will be taking on a dangerous new meta named Sunshine. There are no further details revealed about this new meta, but there is a possibility she's either a new villain or a mixed version of something that exists in the comics.
The series has come up with some unique creations, so there's a chance Sunshine is one of them. The show has already shown several more-iconic adversaries, thus it may be trying it again this time. Also, CarterMatt noted there's technically a Sunshine existing within the DC universe.
As for what else viewers can expect in The Flash season 6 episode 15, Cisco will try to help Nash. The title alone suggests the episode will be an important one for Nash. It also feels like John Constantine may stop by, though it depends on whether or not he's dealing with other issues in Legends of Tomorrow.
Meanwhile, aside from the arrival of a new meta, a familiar face is also coming back to Central City. In episode 14, Keiynan Lonsdale's Wally West a.k.a. Kid Flash is returning with an important mission. He is now completely different from who he was before.
Wally comes back with a Zen attitude and new tricks. He was thrilled to see his family again, but there's actually a particular reason why he returned. He told Barry that he thinks something's wrong with the Speed Force. This is a major concern for them since their speed comes from this energy field.
According to showrunner Eric Wallace, Wally's return is "quite exciting." He explained that the character is still the same, but he has now grown and changed. In addition, he might have new abilities that could be a big help to Barry.
Wallace also explained they decided to bring back Wally because he could help Barry deal with the real fall out of the Crisis. He noted that the real fall out wasn't shown yet, and it will be revealed on the series later on. Wally will have an important role when the real fall out arrives.
The Flash season 6 episode 15 airs on Tuesday night, Mar. 17, on The CW. The episode is directed by Eric Dean Seaton and written by Sterling Gates and Lauren Barnett.
