Return of the Living Dead III

Teenager Curt Reynolds makes the impulsive choice to steal his father's security key card. This single act sets off a chain of events that will change the course of his life and those around him.

Curt and his girlfriend Julie discover a hidden military base where Curt's father, Colonel John Reynolds, is involved in a shocking experiment. They witness a reanimation experiment using 2-4-5 Trioxin gas, intended to create combat zombies.

The military quickly realizes that the zombies they aimed to control are far more dangerous than anticipated. As their hunger for human brains becomes evident, chaos ensues within the lab.

In a desperate attempt to control the situation, Lt. Col. Sinclair suggests a method to attach zombies to exoskeletons. However, Colonel Reynolds pushes for a chemical solution called 'paretic infusion' to freeze the zombies' brains temporarily.

During a demonstration of the paretic infusion, the procedure fails, leading to the brutal death of a scientist at the hands of a revived zombie. This incident catalyzes chaos, leading to a wider outbreak among the staff.

After the outbreak, Curt is reassigned to Oklahoma City while Sinclair takes command of the project. However, Curt refuses to stay quiet and, along with Julie, decides to flee the chaos surrounding them.

While riding his motorcycle with Julie, a moment of distraction leads to a horrific accident. Julie is thrown against a telephone pole, resulting in her instant death and leaving Curt devastated.

In a desperate act of love, Curt returns Julie's lifeless body to the military base. Utilizing his stolen key card, he accesses Trioxin gas to resurrect her, but their reunion is fraught with unexpected horror.

After a brief moment of reanimation, Julie's primal hunger takes over. This compels her and Curt to venture out for food, leading to an encounter with a gang that amplifies the dangers they face.

Curt and Julie find refuge in the sewers with a vagrant known as Riverman. He provides shelter but soon becomes an unwitting participant in their tragic tale of survival and transformation.

While hiding, Julie discovers that self-inflicted pain can suppress her insatiable cravings. This leads to brutal self-mutilation, transforming her into a more fearsome being adorned with spikes and glass.

When the gang discovers their hiding place, Julie uses her new abilities to seduce and kill their leader. The violent confrontation leaves a trail of bloodshed and reveals Julie's escalating transformation.

As Julie grows more acclimated to her pain, she turns on Riverman in a shocking act of violence. His death marks a turning point as Julie’s humanity fades further into darkness.

Realizing that Julie is becoming a military asset, Curt succumbs to desperation. He releases the zombies in a bid to save her, triggering a catastrophic chain of events at the military base.

In a heart-wrenching conclusion, Curt is bitten by a zombie, yet refuses to abandon Julie. They share a final embrace, entering the furnace together, declaring their eternal bond amidst the flames.