“Marvel’s Agents of S.H.I.E.L.D.” is going to take fans back in time in Season 2, episode 15, all the way back to last spring’s “Captain America: The Winter Soldier.” A sneak peek video for the installment flashes back to the day that S.H.I.E.L.D. fell and shows what Bobbi (Adrianne Palicki) and Mack (Henry Simmons) did the day Hydra revealed itself. Both videos reveals that Coulson (Clark Gregg) knows the two aren’t working for him.

Sneak Peek No. 1:

Mack seems to have finally gotten permission to work on Lola, Coulson’s car. Coulson might trust him as an auto mechanic, but that doesn’t mean he trusts him as an agent. Coulson figured out that something is off about that replica Mack made.

“I know Lola like the back of my hand, so it wasn’t too hard to find once I went looking,” Coulson says. “I still haven’t figured out what that component you put in there does, but I’m having Fitz take a look now. You could save everyone a lot of trouble by telling me what it is you’re after.”

Mack doesn’t admit that it’s a scanner used to spy on Coulson. However, the S.H.I.E.L.D. director still knows that something is wrong. Mack claims that he is loyal to S.H.I.E.L.D., but Coulson doesn’t buy it.

“You’ve always been brutally honest with me, and I value that,” Coulson says. “So, I’m giving you a chance here. Just tell me who you’re working for.”

Watch the first sneak peek video from “Marvel’s Agents of S.H.I.E.L.D.” Season 2, episode 15 below:

Sneak Peek No. 2:

Coulson, May (Ming-Na Wen) and Fitz (Iain De Caestecker) meet up after Bobbi sets off the alarms. Fitz reveals that Mack put a scanner in the Lola replica that looked for vibranium. May realizes that this is how Bobbi found Fury’s toolbox, which she stole.

“She said she was working for S.H.I.E.L.D., ‘the real S.H.I.E.L.D.,’” May says.

The sneak peek video then jumps to a flashback of the day the original S.H.I.E.L.D. fell. At one of the aircraft carriers, Bobbi and Mack are shown looking for survivors.

“We’re running out of time, Mack,” Bobbi says. “I need to find him.”

The place is destroyed as they enter a conference room with dead bodies and snall fires. Bobbi sees Gonzales (Edward James Olmos), who is lying on the ground injured, pick up a machine gun. “Commander Gonzales, wait!” she says.

“We’re not Hydra,” Isabelle (Lucy Lawless) says.

“I’ve heard that one before,” he responds.

Watch the second sneak peek video from “Marvel’s Agents of S.H.I.E.L.D.” Season 2, episode 15 below:

Hopefully, more flashbacks will reveal exactly what cause Bobbi is working for.

“Marvel’s Agents of S.H.I.E.L.D.” Season 2, episode 15, airs Tuesday at 9 p.m. EDT on ABC.

RELATED STORIES