In spite of what some say I don't think the core premise behind this film is a bad one.
Acting wise its not awful either and the story whilst basic, holds up well enough, setting the scene for big foot scares and action.
Where is falls down badly and really undermines everything else it tries to achieve, is in the special effects department. CGI is just bad. From the cheesy, poorly rendered big foot, that looks like a giant, rabid, hamster, to the awful, shiny plastic, helicopter effects.
If some extra thought and cash had been invested into how the creature's look and act plus other special effects, this could have worked quite well as an entertaining B-grader.
Sadly that's not the case, with the only "Deadly Descent", being one of farce.
3/10.