The team was founded by Vince McMahon’s Alpha Entertainment and was an owned-and-operated member of the second XFL.

On October 15, 2019, the Wildcats announced their first player in team history, being assigned former Birmingham Iron Quarterback Luis Perez, who was later traded to the New York Guardians.

[8] On March 8, 2020, the Wildcats came from behind to win against the Tampa Bay Vipers 41–34 in what was the final game of the 2020 iteration of the XFL.

On April 10, 2020, the XFL suspended operations, with all of the league's employees, players, and staff terminated.

As television networks have traditionally required alternative leagues to field teams in New York and Los Angeles to secure television coverage without brokering the airtime,[10][11] Southern California has a long history of alternative professional teams.