In the prehistoric past, Keda, a young and inexperienced hunter, struggles to return home after being separated from his tribe when bison hunting goes awry. On his way back he will find an unexpected ally.

A team of Vancouver investigators, led by homicide detective Angie Flynn, sets out to uncover the motive of each puzzling murder by discovering the killer's connection to the victim. Viewers get a glimpse of the killer before and after the crime is committed.

The first season of Mortal Kombat Legacy is a prequel to the original game, explaining the background stories of several characters from the series and demonstrating their reasons for participating in the upcoming tenth Mortal Kombat tournament on which the first game was based.