The Flash Season 4 premieres this October and it features a transformed Barry Allen. In a recent interview, showrunner Andrew Kreisberg and leading actor Grant Gustin (Barry Allen) spilled some spoilers and reveal what is next for the Speedster.

[Warning: This article contains The Flash spoilers.]

In The Flash Season 3 finale, Barry decided to surrender himself and spend time in the Speed Force. Since he holds himself responsible for creating The Flashpoint, he thinks this is needed for the ultimate atonement. Spoilers suggest that his time in the Speed Force will have a great impact on him and it will be unraveled in the upcoming The Flash Season 4.

In an interview with Entertainment Weekly, Gustin said that Barry will not be the same when he comes out of the Speed Force. Expect him to be “jumbled” and confused when he reunites with his Central City team. Nonetheless, his experience in the prison will reportedly make him wiser.

“Initially, Barry is pretty scrambled when he comes out of the Speed Force,” Gustin told the above-mentioned publication. “He’s not himself, he’s talking nonsense. The way I see it, when he was in the Speed Force, he experienced his whole life laid out in front of him from start to finish. So in some sense, he comes out very wise, kind of knowing everything, but he has no understanding of what he’s seen, so he comes out very jumbled and talking what he thinks makes complete sense, but just nonsense to the rest of the crew.”

Meanwhile, the EP Kreisberg explains that the title of The Flash Season 4, episode 1 is aptly titled “The Flash Reborn.” The premiere segment will feature the rebirth of Barry Allen as he comes out of the Speed Force after six months. The showrunner promises that Barry’s time away from Central City had a “positive” impact on him. He explains that his experience has been like “baptism for him.” It seems it will be Barry’s ultimate redemption.

“A huge weight has been lifted and he’s forgiven himself again of all the mistakes he made the last couple years and people that he’s hurt,” Gustin explains.

Meanwhile, Barry is said to be ready to move forward in life as he returns to Central City. According to the actor, he will be “happy Barry again.” The recently released promo shows a new look for Barry and teases his rebirth.

“The Flash” Season 4 premieres Oct. 10 at 8:00 p.m. on The CW. More spoilers and updates are expected soon.