Loosely inspired by Norse mythology, the film follows the young warrior Thor (Cody Deal) in his battle against Loki (Richard Grieco).

Club, Phil Dyess-Nugent gave Almighty Thor a rating of "D−", taking issue with the film's low budget: "The film is so underpopulated that most of the awful deaths Loki inflicts go down off-camera; he points his stick or gives a command to his dogs, and then you hear somebody holler, "Argghhhh!!""

Dyess-Nugent also criticized the acting of the leads and took issue with the producer's decision to shoot the LA scenes in abandoned parking lots: "The comic high point is a fight between Thor and Loki, with the guys spinning around and waving their weapons at each other while keeping one eye peeled for cops who might demand to see their filming permit.

"[2] The Blueprint website review of the film stated, "This brain numbing 80 minutes of constant noise, cheap effects, background music that never once stops and ropey acting will test the patience of even the most hardened B-movie aficionado ... Almighty Thor was just one giant headache of a film.

"[3] In a humorous and ironic review, Stuart Heritage from the Guardian declared that Almighty Thor was better than the Marvel film on which it was based.