TEAM SCORPION MUST WORK WITH THEIR OLD NEMESIS IN ORDER TO PREVENT THE EXTINCTION OF MANKIND, ON THE FOURTH SEASON PREMIERE OF "SCORPION," MONDAY, SEPT. 25

Josh Leonard Returns as Mark Collins

Team Scorpion Sings that "Everything Is Absolutely Genius"

"Extinction" - Team Scorpion must work with their old nemesis Mark Collins in order to prevent the extinction of mankind. Also, Walter and Paige awkwardly navigate their new relationship, on the fourth season premiere of SCORPION, Monday, Sept. 25 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Josh Leonard returns as Mark Collins. Also, Team Scorpion sings that "Everything Is Absolutely Genius."

REGULAR CAST:

Elyes Gabel (Walter O'Brien)
Robert Patrick (Agent Cabe Gallo)
Katharine McPhee (Paige Dineen)
Eddie Kaye Thomas (Toby Curtis)
Jadyn Wong (Happy Quinn)
Ari Stidham (Sylvester Dodd)
Riley B. Smith (Ralph Dineen)

RECURRING CAST:

Josh Leonard (Mark Collins)
Dan Dratch (Dyfrost)
John Hartman (Kaldor)

GUEST CAST:

Anil Kumar (Carson)
Tom Massmann (Thomas Foolery)

WRITTEN BY: Nick Santora and Nicholas Wootton

DIRECTED BY: Sam Hill