Cisco Ramon is regularly a highlight of The Flash, proving to be perfect comic relief at all of the right times whilst also being the quintessential nerd. With that said, it was a WTF moment to see the ever-cheery Cisco go all serious on us here. Seriously, in the shows run to date, theres only been a handful of situations where Mr. Ramon hasnt had a grin across his face. This, though, was one of those moments. About to set off to Earth-2, Cisco puts on his serious face as he gives Caitlin an if I die letter intended for his family should his jaunt to Earth-2 not prove to be successful.