When Carly jokingly challenges MMA fighter Shelby Marx to fight, the two agree to have an exhibition fight for charity. Unfortunately, Carly accidentally falls on Shelby's grandmother during a press conference. Thinking Shelby wants revenge, Carly backs out of the fight, only to be ridiculed as a coward.

Carly visits Shelby and apologizes, and the fight is back on. However, when Nevel Papperman alters a clip of the press conference to make it look like Carly intentionally tackled Shelby's grandma, Shelby becomes furious and genuinely attacks Carly during their boxing match.