WATCH: 'Supergirl' Crossover Previews with The Flash for "World's Finest"

Image credit: Entertainment Weekly

We're only days away from the latest (and greatest?) TV superhero crossover when the Flash (Grant Gustin) visits National City from another dimension (the CW?) and helps Supergirl (Melissa Benoist) fight Silver Banshee (Italia Ricci) and Livewire (Brit Morgan). 

Check out this series of sneak peeks to prepare for Monday's episode entitled "World's Finest." The two most likable heroes in any cinematic universe show a great deal of chemistry and joy together. The type of things some people demand in their superheroes, Supergirl/The Flash crossover has it in spades. 
There’s a new superhero in National City! Kara gains a lightning-fast ally when The Flash arrives from another dimension. The duo must team up to battle Silver Banshee and Livewire while trying to get The Flash home. Go behind the scenes of this epic crossover and don’t miss Supergirl Monday, March 28 at 8/7c. Only CBS