Open Grave is a 2013 American post-apocalyptic horror film directed by Gonzalo López-Gallego, starring Sharlto Copley and Thomas Kretschmann, Joseph Morgan, Erin Richards, Josie Ho, and Max Wrottesley in supporting roles.

The story follows them trying to figure out their identities and their past while evading zombie-like humans affected by a rage virus and also their struggle to escape the forest they are stuck in.

Meanwhile, Michael hears screams in the distance and follows them until he finds a badly injured man trapped in barbed wire.

Nathan finds a woman and her child chained in a cabin and narrowly escapes when they and a group of people in a zombie-like state attack him.

In the clips, Jonah explains that the vaccine prevents the spread of an infection but causes symptoms such as temporary amnesia and a death-like state.

Lukas knocks Jonah out and throws him back in the body pit, then attacks the mute woman and Sharon, who drives him off with a shotgun.

Jonah explores the abandoned car, discovering a medical kit, documents addressed to him, and a photo of him and Sharon confirming they knew each other previously.

A large group of infected people attack, and in desperation Sharon writes a letter to Jonah that explains what has happened and what the solution is.

When helicopters arrive and kill the infected surrounding the house, Nathan remembers that a military rescue team was due to come on the 18th.

[2] Josie Ho, Thomas Kretschmann, Joseph Morgan, Erin Richards, and Max Wrottesley were confirmed to join the cast on May 3, 2012.

[5] Frank Scheck of The Hollywood Reporter wrote: "The screenplay by Eddie and Chris Borey fails to live up to the juiciness of the original premise, lacking meaningful character development and teasing out its unveiling of its mysterious plot elements in dull, plodding fashion.