Peyton List Makes Her Debut on Tonight's All-New Episode of 'The Flash'

The Flash (Grant Gustin) seemingly holds Lisa Snart (Peyton List) hostage in these stills from tonight’s episode of The Flash.

In “Rogue Time,” The Flash learns that Captain Cold (Wentworth Miller) and Heat Wave (Dominic Purcell) have returned to Central City.

PHOTOS: Check out the latest pics of The Flash

This time Snart has brought along his baby sister Lisa to help wreak havoc on the city.

The Flash airs TONIGHT, March 24 @ 8PM on The CW.

25+ stills inside of The Flash…