Eobard Thawne was originally angry when a metahuman was able to get the upper hand in a fight against the Flash and infect many people with a mutagen that changed their DNA to make them either an alpha, beta, or omega, but after seeing that the timeline remained mostly intact, he decided that this could be played to his advantage. Luckily, the metahuman helpfully (and a bit smugly) informed the scientists, police departments, and news reporters about the effects of her attack. Caitlin, Cisco, Barry, Eddie, and Iris for some reason all feel strong protective urges as well as....other urges. Joe just wants to know when he is going to get two more sons and another daughter through marriage. When Eddie and Iris find out about the Flash's identity, all five of them buy a house and live as a unit, but Eobard Thawne wants to find a way to torture the Flash in every possible way before returning to his time line.