The next episode of the Flash is still days away but this early, the released trailer seems to hint that the upcoming episode will be the first team-up between the Flash and the Atom.

In the next episode titled "All-Stay Team Up", Felicity Smoak (Emily Bett Rickards) and Ray Palmer (Brandon Routh) will be paying Barry Allen (Grant Gustin) and company a visit to seek help for Palmer's A.T.O.M. exosuit. But other than seeking some help in figuring out the supersuit, Ray Palmer (aka the Atom) may be of some help to the Flash as the battle against metahumans continues.

With the Flash and the Arrow expected to have another crossover episode soon, this could be one of the preparations for that explosive windup between both CW shows. Do recall that the Flash is expected to team-up with the Arrow (Stephen Amell) and Firestorm (Robbie Amell) to fend off a speculated large metahuman attack and the Atom could very well help out once that happens.

Aside from that, Barry is still in the middle of figuring out who killed his mother and of course the twist involving Dr. Harrison Wells (Tom Cavanagh). Will Felicity help out Barry with this dilemma and get to the bottom of the true secret behind Dr. Wells? Apparently this may tackle the time-travel issue which has obviously been the focus from the previous episodes.

With four heroes coming together, how many metahumans will they be up against? There is Captain Cold, the Reverse Flash and the almost forgotten Gorilla Grod. Could there be more to come?

There are still a lot of metahumans who have their devious plans on wreaking havoc and mischief on Central City and banding together four eventual members of the Justice League could mean some explosive episodes ahead for the followers of the Flash and the Arrow.

Don't miss out the next episode of the Flash titled "All-Star Team Up on April 14, 2015 on CW. You can check out the trailer below.