Criminal Minds Exclusive: Here's Your First Look at Prentiss' Return! 

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Exclusive: Here\'s Your First Look at Prentiss\' Return!

starting in Wednesday\'s (Oct. 12) episode -- and judging by our exclusive first look, her first case is such a doozy that we can\'t even talk about. Or at least she and Alvez (Adam Rodriguez) can\'t.

"What happened out there, Prentiss -- keep that between us," he ominously says.

Prentiss makes the transatlantic trek to help out the BAU while Hotch (Thomas Gibson) is on a special assignment. The case involves the disappearances of three women, whose limbs are found encased in cement. Bonus sneak peek: We were on set to see the creation of one of the arms.

So what, exactly, happened between Alvez and Prentiss "out there"? Were they attacked by a dozen cement arms? Did the unsub try to dismember them? Or is it something else? Showrunner Erica Messer told us that the two will form a "fun friendship" after an initial awkward meet-cute. There\'s certainly nothing fun about that exchange though.

Criminal Minds: Kirsten Vangsness Gives Us a Set Tour, Pauses to Mourn MorganGo inside the BAU bullpen

Criminal Minds: The 16 Best Hotch Moments Ever – RankedIt won\'t be the same without him

Criminal Minds: JJ Is Burning with Rage in This Exclusive Sneak PeekAlvez will help her through it

Criminal Minds Finds Its Replacement for Thomas GibsonHe will first appear in the season\'s eighth episode

Criminal Minds Season 12: Everything You Need to KnowHotch is leaving, Prentiss is back – but that\'s not all

Criminal Minds: Meet Luke AlvezGet to know the BAU\'s new agent

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