Supergirl has been a wild ride throughout Season 3, and the good guys are facing danger on more than one front.
Unfortunately for them, “In Search of Lost Time” may have revealed that Supergirl will need to kill a major character off in Season 3, and that character is none other than Sam.
On top of the regular villains of the week who turn up to cause trouble, Sam is barely containing Reign, and it’s likely only a matter of time before Reign manages to break out of Lena’s lab.
Throw in the third Worldkiller, known as Pestilence, whose arrival is clearly imminent based on the birds falling dead out of the sky at the end of the episode, and there’s plenty of trouble for Kara and Co. in National City.