If yesterday seemed abnormally bright, it might have had something to do with the adorable first photos of Supergirl and The Flash crossing over for the former’s March 28 “Worlds Finest.” You just knew there had to be a race as well, the first footage of which arrives in a new crossover tease!

Like yesterday’s teaser, Supergirl only counts herself willing to show off so much of the March 28 outing, though Barry and Kara will definitely be at their playful best in racing for the fastest hero. Our money’s on Barry, will all respect to Kara, but we’re the real winners regardless:

So reads the official March 28 synopsis, which confirms a villainous teamup we glimpsed on set earlier:

Kara gains a new ally when the lightning-fast superhero The Flash suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home.

We’ll find out more on the road to March 28, so stay tuned for more “Worlds Finest” details of the big Supergirl-Flash crossover!

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