Anthony's loyalty to the 2nd Mass will take a hit in the final season of Falling Skies.

'Falling Skies' Season 5 Premiere: Multiple 2nd Mass Deaths Set For 'Find Your Warrior', Who Will Tom Mason Lose?

As previously teased by Moon Bloodgood (Anne), one of the resistance's fighters will head down a "dark path" as the war for Earth tiptoes closer to a conclusion. Thanks to the plot summary for episode 4, "Pope Breaks Bad," we now know who she was referring to.

Imagine our surprise when it turns out that culprit, despite the title, may turn out to be the former cop and not the ex-con.

'Falling Skies' Season 5: Weaver To Meet An Old Flame, Plot Revealed For Finale Episodes

"A mission to procure vehicles and fuel goes awry. Cochise shares troubling news with Anne that will test both her medical and leadership skills," TNT teased of the July 19 episode. "Anthony's mental stability and his loyalties are brought into question. Meanwhile, a desperate Pope takes things into his own hands."

Considering everything the 2 nd Mass has been through in the last four years, it's not surprising that even the best of the fighters are starting to crack. Compound death and starvation of the opening episodes with Tom's mysterious return and you have a recipe for distrust. Or, alternately, Anthony could merely be the latest eye worm victim.

Why do you think Anthony will raise eyebrows during season 5? Sound off in the poll below!

Find out more when Falling Skies returns to TNT this Sunday. Click the video below to see a preview for the premiere.