Color me skeptical that some random Christian filmmaker has managed to overturn decades of archeology.
This review suggests that Mahoney wants us to believe that there is a 200 year chronological error in Egyptology. It's not my field, no more than a hobby of mine, but I seriously doubt that.
Also, if he's just mustering the same circumstantial nonsense has Rohl did 20 years ago then he's just pilfering the pockets of the faithful.
I don't think we can know what evidence he claims w/o someone watching the movie.
The clip I watched seemed very excited about there being evidence of Semites ('cause that's Jews!) Around Avaris, by the map flashed. This seems old hat because Avaris was the last stronghold of the Hyksos, mostly of Canaanite origin and ruling as the 15th Dynasty, often called "the Shepherd Kings" because of their origin as nomad herders.
There is, in fact, a school that argues that any historical basis for Hebrews in Egypt is not the piteous victims of Exodus. Rather, the many tribes represented by Joseph and his brothers are the Hyksos, ruled Egypt rather than being its slaves, and were eventually driven out to the east and the Sinai. Then they had to find somewhere new to conquer.