The film opens with a heartfelt montage showcasing the tender moments shared by Skylar “Sky” (Alexa PenaVega) and Dan. Their wedding celebration serves as the backdrop, captured through the lens of Tommy Covington (Shaun Sipos), who is documenting the day as a favor to Dan. However, the joyful occasion turns nightmarish when Skylar’s Christian parents experience an inexplicable fate during an elevator ride, their eyes turning milky white in an unsettling moment that signals the chaos to come.

The atmosphere shifts dramatically into apocalyptic pandemonium, with the main floor transforming into a scene of mass hysteria as others are afflicted by the same mysterious condition. Tommy and Jack (Bryan Dechart) spring into action, desperately seeking answers amidst a city plunged into turmoil, where planes fall from the sky and explode upon impact. They are jolted by a piercing noise reminiscent of a trumpet, while ominous thunder and lightning herald the encroaching disaster.

As the group reconvenes outside, Skylar theorizes that they are traversing the Biblical Rapture—a moment where believers are lifted to heaven while non-believers are left behind. Despite Tommy’s skepticism, preferring a scientific rationale, Skylar insists on finding a safe refuge, convinced that the catastrophes will escalate.

The intense weather worsens, unleashing monstrous hailstones that terrorize the town. In a bid for safety, Tommy encounters Sam while Skylar seeks comfort in the Bible. She shares a significant passage regarding the Rapture, discussing The First Trumpet with Dan and Jack.

Their quest leads them toward a nearby church, but just as they approach, a sinister force pulls Skylar from Dan’s grasp, injuring her as they fight to reach the sanctuary. Inside, they are welcomed by Pastor Shay, who offers a refuge from the chaos unfolding outside. Here, Jack has a deeply emotional reunion with Allison as Dan comforts Skylar, who is in dire need of healing. Shay sheds light on their grim reality: they live in a world ravaged by the Rapture, where the gates of the church creak open to allow more survivors, including a woman on the verge of childbirth. The birth carries a tragic note as the child is stillborn, symbolizing the devastation of their existence.

When Tommy questions the absurd fate that befell the unborn, Shay explains that God has taken the spirits of the believers, leaving their bodies behind—a stark reminder of the contrast between faith and mortality. As the existential crisis deepens, they face a grave threat at the church’s doors when a demonic entity brutally dispatches an intruder. Sam captures a heartfelt moment as Tommy delivers a message to Allison, driven by love and devotion.

Outside, the world reels from the Rapture’s impact, as reports circulate about the instantaneous disappearance of children and Christians, leading scientists to label it as “Instant Death Syndrome.” The weather patterns spiral into the surreal, heightening the tension. Tommy and the others grapple with their new reality, as he presents a haunting video of Skylar’s kidnapping by a supernatural force, with Shay clarifying that the Fifth Trumpet has sounded, revealing the face of a Fallen Angel.

As the congregation finds itself huddled together in fear, The Fallen launch an assault on the church, forcing the survivors to retreat to the basement for protection. In a selfless act of courage, Shay sacrifices himself to save those he holds dear.

As dawn breaks, Tommy, Jack, Sam, and Dan embark on a mission to seek medical help for Skylar, who is suffering from the effects of a potent demonic venom. However, their efforts prove futile as they arrive at the hospital too late—Skylar succumbs to her injuries. In a passionate outburst of grief and fury, Dan anguishes against God and is suddenly impaled and taken into the sky by an unseen force, mirroring Allison’s fate.

In the devastation that follows, Tommy, Jack, and Sam come across a relief camp, where Sam shares a poignant final message from Allison, echoing her steadfast love just moments before her demise. Jack, seeking solace, opts for baptism, yet his newfound faith is short-lived as he becomes another victim of the unleashed demonic terrors.

As “Amazing Grace” resonates through the camp’s speakers, ominous demons descend upon them, drawn to the fervent devotion of souls like Tommy and Sam. In a tragic culmination, the pair makes their final stand against the shadows, their love for God and each other becoming ultimately ensnared by the very forces they sought to resist.