Grant Gustin as Barry Allen
In a sneak peek from Season 3, episode 10 of “The Flash,” Barry (Grant Gustin) gets mad at Wally (Keiynan Lonsdale) for not following his instructions during their mission to catch Jared Morillo, a.k.a. Plunder. The CW

Barry (Grant Gustin) is getting closer to possibly losing Iris (Candice Patton).

In a sneak peek from Season 3, Episode 10 of “The Flash,” Barry gets mad at Wally (Keiynan Lonsdale) for not following his instructions during their mission to catch Jared Morillo, a.k.a. Plunder.

“Wally, what was that!? You’re supposed to be shadowing me,” the Scarlett Speedster yells at Kid Flash in front of everyone at S.T.A.R. Labs right after they successfully locked Jared up at Iron Heights.

“Wait. You’re mad at me?” a confused Wally responds.

In an attempt to ease up the tension between the two, Joe (Jesse L. Martin) reminds Barry that Wally basically saved his life during their encounter with Jared. That, however, doesn’t help at all because Central City’s original speedster becomes even more furious that he may never team up with Wally ever again.

“I’m sorry, Wally. But if you can’t learn to follow orders, this deal between us, it’s over,” Barry tells the newbie speedster.

Whether or not Wally made a major mistake during their fight against Jared, it seems that it isn’t the real reason why Barry is upset.

In the midseason finale of “The Flash,” Barry accidentally found himself in the future after he threw the Philosopher’s Stone into the Speed Force. There, he saw Savitar kill Iris. But moments before that, he saw a TV newscast reporting the end of Jared’s trial.

“The highly publicized trial of Jared Morillo, a.k.a. Plunder, comes to a close,” the newscaster said. “Morillo was found guilty of grand theft and aggravated assault after he was caught by the Flash robbing the Central City Museum earlier this year.”

Since Barry and Wally have already caught Jared in the present timeline, it means that Iris’ potential death is just a few months away from happening, and that’s probably the actual reason why Barry is enraged right after they captured Jared.

“The Flash” Season 3, episode 10 airs on Tuesday, Jan. 24, at 8 p.m. EST on The CW.