What actually happens
A paratrooper drop with a short guest list
It is the night before D-Day, in an alternate 1940s. A squad of paratroopers has orders to take out a tower in an old church that the Germans use to jam radio signals. Their plane is shot down first. The crash, German soldiers and landmines take most of the squad, including their leader, Sergeant Rensin. That leaves Corporal Ford, who is next in command, plus Boyce, Tibbet and Chase. The mission is still on, and they have fewer people to do it with.
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Hospitality, with a side of tar
The survivors run into Chloe, who lives in the village by the church, and shelter in her home. She lives there with her eight-year-old brother Paul and an aunt who was disfigured by German experiments. Tibbet and Chase leave for the planned meeting point, and a patrol led by an officer named Wafner calls on Chloe. He sends his men away and starts coercing Chloe, threatening to send Paul to be "fixed." Boyce and Ford interrupt him and take him prisoner. Boyce goes looking for the others and sees villagers who were disfigured being burned. A dog drives him into a truck full of bodies that is headed for the church. There he finds an underground base with a radio room and a laboratory, where living prisoners are used to turn a black tar into a serum. He takes a syringe of it, frees Rosenfeld, a squad member who was captured, and gets them both out through the sewers.
Chase gets a second opinion
Boyce, Rosenfeld, Tibbet and Chase end up back at Chloe's house, where Wafner will not say what the serum does. Chase tries to escape and Wafner kills him. This is the scene to brace for, and it happens in the middle of the movie: Boyce injects Chase with the serum, Chase comes back as a violent mutant, and Boyce has to bludgeon him to death. A patrol arrives and a firefight begins, and Ford blows away half of Wafner's face. Wafner escapes, takes Paul hostage, and heads to the lab, where he gives himself a double dose of the serum.
Plan B involves a sewer
The squad decides to sneak into the base, destroy the tower and the lab, and get Paul back. Rosenfeld and Tibbet make noise at the front gate while the rest slip in through the sewer. Boyce and Ford set the explosives. Chloe locates Paul and sends him home to the village, then kills a mutated test subject that corners her. Tibbet is hurt shielding Paul from gunfire, and Chloe finishes off the remaining Germans and treats his wounds. Wafner, now mutated and far stronger than a person, impales Ford on a meat hook and explains the tar, which the Germans found by accident while looking for godlike power under the church. Boyce distracts him, Ford frees himself, takes the serum and holds Wafner off, and Boyce sets off an oxygen tank that drops Wafner into a pit.
The ending, explained
Ford, already mutating, tells Boyce to leave him and set off the explosives, because neither side should have the serum. Boyce gets out as the church and the tower collapse behind him. The collapse kills Ford, Wafner and the test subjects. Boyce reaches the others, and a radio reports that the D-Day landings succeeded. In his report, Boyce says Ford planted the bombs in the church. He informs his commanding officer that no underground lab existed, and the surviving soldiers are moved to a different company.
The post-credits ruling
Nobody has confirmed whether there is a scene after the credits.
β Spoiled safelyDog status: fine, and nothing happens to it.
Questions people ask at 1am
Is Overlord scary?
Overlord is a 5 out of 10, and the dread is low. It has jump scares and some very gory mutant scenes, but the tension eases once you know the plot.
How does Overlord end?
Ford tells Boyce to blow up the base, and the church and tower collapse, killing Ford and Wafner. D-Day succeeds, and Boyce reports that no lab existed.
Does the dog die in Overlord?
No dog dies in Overlord. A dog chases Boyce and a few dogs appear on leashes, and none of them is harmed.
Is there a post-credits scene in Overlord?
Nobody has confirmed whether Overlord has a scene after the credits, so staying through them is a personal call.
What is the serum in Overlord?
The serum is distilled from an ancient black tar that the Germans found beneath the church. It is made using living prisoners, and it can bring the dead back as violent mutants.