Jessie's Karan Brar & Dodgers' Andre Ethier Guest Star on 'Lab Rats' Tonight! (Exclusive Video)

Karan Brar and Dodgers baseball player Andre Ethier show off their cool cosplay in this new still from Lab Rats.

In “Alien Gladiators”, Leo (Tyrel Jackson Wiliams) and Davenport (Hal Sparks) attend fan convention and face off in an epic fire staff battle.

Meanwhile, Adam (Spencer Boldman), Bree (Kelli Berglund), and Chase (Billy Unger) attend the convention dressed like their favorite “Alien Gladiators” characters in search of the movie’s star. However, things take a turn for the worst when the gang lands in a security holding area with a costumed fan boy.

“Alien Gladiators” airs TONIGHT, Monday, October 13th @ 6:15PM ET/PT on Disney XD.