The four returning Arrowverse shows all got new trailers at SDCC and they’ll all return in October on The CW.
The Flash, Arrow and Legends of Tomorrow are back in October and there’s trailers for all the new seasons courtesy of Comic Con.
Originally sent to protect her cousin on Earth, Kryptonian Kara Zor-El gets knocked off course and arrives after her cousin has already become Superman. After trying to live a normal life under her adopted name of Kara Danvers, she finally uses her own powers to become Supergirl and protect National City from alien and metahuman threats.
After being introduced on Arrow this past season, Barry Allen returns home to Central City to defend it from a crop of newly empowered “metahumans”, possibly created by the destruction of the STAR Labs particle accelerator, that also gave Barry incredible speed and healing powers.