The story that unfolds in Orphan Black: Echoes season 1 perfectly sets up a major character’s return years after the original Orphan Black finale. Not only that, but Echoes, which centers on a now-adult Dr. Kira Manning (Keeley Hawes), pretty much requires a particular Leda clone to make an appearance during the spinoff’s sophomore outing. While the spinoff follows amnesiac Lucy (Krysten Ritter) for the majority of its runtime, Orphan Black: Echoes episode 1’s ending pays homage to the original series by revealing that Kira, Sarah Manning’s (Tatiana Maslany) daughter, is one of the show’s main characters.
https://screenrant.com/orphan-black-echoes-clone-story-tatiana-maslany-cameo-need/