Zoom has gathered metahumans to form his army, while Jesse and Wally were hit by the particle accelerator. As the season reaches its penultimate episode, a metahuman with his army of speedsters might go against three speedsters and their human allies.

The last scene of the previous episode showed Zoom addressing an army of metahumans. He gathered them so their likes could rule Earth-1 like they did on Earth-2. Barry successfully came out of the speed force with renewed determination, but one speedster won't be enough to fight an army of super-powered villains. Wally and Jesse were hit by the particle accelerator and it looks like the Kid Flash and Jesse Quick will make an appearance in "The Flash" season 2 episode 22 titled "Invincible."

While the appearance of the Kid Flash and Jesse Quick still remains a speculation, the viewers are definitely going to see Earth-2's Laurel Lance. As the reverse Black Canary, actress Katie Cassidy will go by the villain name Black Siren.

The trailer shows Black Siren asking Zoom, "What are you up to?" to which he replies, "No good." Meanwhile, a confident Barry says, "The speed force is with us. How can we possibly lose?" And another scene shows him telling his father, "I'm just not afraid anymore."
The two speedsters will come face to face. Jay tells Barry, "You always have to be a hero," and warns, "While you're playing the good little boy I'll be busy winning." And it looks like Barry will be overpowered at some point as he desperately shouts, "No!"

The ultimate showdown between the main hero and the main villain will be shown in the next episode yet. Director Kevin Smith, who worked on the previous episode, shared on "Fatman on Batman" podcast how great the upcoming episodes are.

He shared, "It feels like the last three episodes of this season … and I'm not throwing mine in for ego or anything like that … but the storyline that happens in that episode, the Barry stuff, is really crucial to the last two episodes so it feels like a triumvirate of episodes. Ends insanely, insanely strong."

Major deaths have been happening in many shows and some fans are guessing that one of the people closest to Barry will be killed off in the finale. Some are also guessing that after exploring the multi-verse, different dimensions will be the theme in season 3.

With two more episodes to go, watch "The Flash" airing every Tuesday at 8 p.m. on The CW network.