“A secret lab underneath a comic book store: what more could a girl ask for?” Cosima is ensconced with Scott, doing the crazy science. Something’s bugging Sarah (and it’s grossing us out). At least there’s good news from the obstetrician for Helena, and copious footage of Felix painting wearing only an apron.

Orphan Black Season 4 Episode 2

Jean MacDonald and Kathy Campbell

Orphan Black Science Recap - The Mary Sue. Good info on viral vectors in gene therapy.