CW's 'The Flash' Spoilers: Will Grant Gustin, Danielle Panabaker Discover Harrison Wells' "Secrets?" [WATCH]

The Flash continues its streak on the CW network with an all-new episode. When an old face from the past returns, will Barry Allen (Grant Gustin) and Caitlin Snow (Danielle Panabaker) discover the deadly secret Dr. Harrison Wells (Tom Cavanagh) has been hiding from them?

In our first recap, Barry (Gustin) was struck by lightning and thrown into a vat of chemicals, After the particle accelerator explosion, Caitlin Snow (Panabaker) and Cisco Ramon (Carlos Valdes) have been studying Barry's newfound super-speed powers. As the scarlet speedster, the trio have been fighting against the metahumans, who use their powers to harm Central City, including their mentor, Dr. Harrison Wells (Tom Cavanagh).

In recent recap, Captain Cold (Wentworth Miller) and Heat Wave (Dominic Purcell) kidnapped Caitlin Snow to get the Flash's attention. The two super villains tore up the streets as they fired their weapons at the red streak. The Flash had to slow his speed down, in order for Cold and Heat Wave to hit each other with their own beams. Though the duo was captured, they managed to break free with the help of Golden Glider (Peyton List).

According to TV Line, The Sound and the Fury features the return of Wells' former protégée, Hartley Rathaway (Andrew Mientus), aka The Pied Piper. With the ability to manipulate sound waves, the Pied Piper wants revenge on his mentor for the particle accelerator explosion.

In the clip, Caitlin and Cisco mention they have never been to Well's home, which was under attack by Rathaway.

Check out TV Line's clip here:

Released on the CW Network Youtube account, another clip presents the Flash against the Pied Piper. Maybe because he wanted to get caught on purpose, Rathaway tells the Flash he knows something about Wells.

Does Rathaway know Wells is Reverse-Flash? That's too early in the season to reveal, I think. Could he know that Wells is responsible for causing the accelerator explosion, which caused Ronnie Raymond (Robbie Amell) to turn into Firestorm?

Check out the clip from The Flash here:

The Sound and the Fury airs tonight at 8pm on CW.