‘Supergirl’ Season 2: ‘The Flash’ Season 3 ‘Invasion!’ Crossover Episode Barely Starts On ‘Supergirl’

Supergirl Season 2 episode 8, “Medusa,” was a great episode – one of the best so far. But in terms of crossover, there was none. The Flash and Vibe showed up for less than 30 seconds. This means if you were afraid you’d miss some ‘Invasion!’ action, you'll be relieved to know that you didn't miss anything at all. In fact, if you're not caught up with Supergirl, you’ll probably have no idea what’s going on in the episode anyway.

Barry and Cisco show up in Kara’s apartment via breach and Barry asks her to return the favor she owes him from helping her last season. Cisco throws some shade toward Barry when he tells Kara they are friends. But there was no talk of The Dominators and Barry didn’t seem particularly stressed out. It’s also a safe bet the first few minutes of The Flash’s ‘Invasion!’ episode will recap what happened, but the following GIF is pretty much all the crossover there was.

To be fair, Executive Marc Guggenheim did warn fans that the ‘Invasion!’ event was really split into three parts, not four. However, the event keeps being referred to as a four-night, four-part crossover and that's not entirley accurate. Guggenheim also clarified the first part is The Flash, Arrow the middle, and Legends of Tomorrow the finale. So it’s more of a Supergirl crossover into the Arrowverse, just like how the Supergirl crossover last season had nothing to do with what was happening in The Flash. Executive Producer Greg Berlanti also tweeted out to fans before “Medusa” aired, saying the crossover only starts at the end of the episode.

Looks like we’ll have to wait another day to see The Flash suited up with Supergirl and Green Arrow. The Flash Season 3 episode 8, “Invasion!” airs Nov. 29 at 8 p.m. on The CW.