Supergirl Episode 210 We Can Be Heroes (Please be aware that this is a long review ... even by my standards.) Supergirl Episode 210, titled We Can Be Heroes aired this week and heralded the return of Supergirls arch-enemy Livewire. Given the commercials we had seen for this, I thought it would be something of a very action-heavy episode. But instead, we got a character driven show in which several of the shows primaries had to deal with either personal biases or outright misjudgments. This concept of prejudice blinding someone has been a popular theme to tackle on this show right from the beginning. But usually it is the main characters reaction to it, not wading in it a bit themselves. Perhaps the most perplexing plotline in the episode was Kara not wanting to let other less proven people wade into super-hero business. She tries to shelve Mon-El (not trained) and James (not invulnerable) throughout the episode and even moving on. And yet ... you think that Kara of all people wouldnt f...