Overlord (2018)

On the eve of D-Day in an alternate 1940s where Executive Order 9981 is signed in 1944, a paratrooper squad, most of them in an integrated unit, is sent to destroy a German radio-jamming tower in an old church. Their plane is shot down and most of the squad, including squad leader Sergeant Rensin, die either in the crash or by Nazi soldiers and landmines. Four survivors remain: second-in-command Corporal Ford, Private Boyce, Private Tibbet, and Private Chase.

The survivors meet Chloe, a young woman from the church's village, and take refuge in her house. Chloe lives with her 8-year-old brother Paul and her aunt, who was disfigured by Nazi experiments. Tibbet and Chase depart for the scheduled rendezvous site and a Nazi patrol led by SS Hauptsturmführer Wafner visits Chloe. Wafner sends his men away and proceeds to coerce Chloe for sex, threatening to send her brother to be "fixed." Boyce and Ford interrupt and capture Wafner.

Boyce searches for Tibbet and Chase, witnessing Nazis burning disfigured villagers, and is forced by a dog into a truck carrying dead bodies to the church. Boyce disembarks and finds an underground base housing a radio operating room, and laboratory where the Germans perform experiments involving ancient black tar distilled into a serum using living prisoners. Boyce takes a syringe of the serum and rescues Rosenfeld, another member of their squad who had been captured. They escape through the base's sewers.

Boyce, Rosenfeld, Tibbet and Chase all return to Chloe's house where Wafner refuses to explain the serum. Wafner kills Chase as he attempts to escape. Boyce injects Chase with the serum, resurrecting him as a violent mutant, and Boyce bludgeons him to death. A patrol responds and Ford blows off half of Wafner's face in the ensuing firefight. Wafner escapes with Paul as a hostage and injects himself with two doses of the serum in the lab.

The squad plans to infiltrate the base, destroy the tower and laboratory, and rescue Paul. Rosenfeld and Tibbet launch a frontal assault as a distraction, while the others enter the base through the sewer. Boyce and Ford plant the explosives, and Chloe finds Paul, sends him back to the village, and kills a mutated test subject who corners her. She returns to the village as Tibbet and Rosenfeld are pursued by the base's defenders. Tibbet is wounded while shielding Paul from gunfire. Chloe kills the remaining Germans and treats Tibbet's wounds.

Wafner, mutated and superhumanly strong, impales Ford on a meat hook and tells him about the tar. They'd been searching for godly, supernatural power and by accident did they find it beneath the old church. When Boyce distracts Wafner, Ford frees himself, uses the serum, and holds off Wafner. Boyce explodes an oxygen tank, sending Wafner into a pit. Ford, mutating, orders Boyce to leave him behind and detonate the explosives, believing neither side should possess the serum. Boyce escapes as the church and jamming tower collapse behind him, killing Ford, Wafner, and the test subjects. He joins the others as a radio announces that the D-Day invasion was successful.

In his report, Boyce credits Ford for planting the bombs inside the church. Boyce tells his commanding officer there was no underground lab and the survivors are reassigned to another company.