Et in Arcadia Ego

Part 1: Using a Borg transwarp conduit, La Sirena arrives at Soji's homeworld, Coppelius, several days before the Romulan fleet. Narek arrives and attacks, but is interrupted when the Artifact follows them through the transwarp conduit as well. A planetary defense system in the form of giant orchids drags the three ships to the planet's surface, and Picard requires medical attention following the crash. Jurati discovers his terminal illness, and Picard reveals it to the rest of the crew. After finding Elnor and Seven alive in the wreckage of the Artifact, the crew travels to the settlement where Dahj and Soji were created. They find Maddox's partner (and the son of Data's creator) Altan Inigo Soong with a colony of synths, including Janna's twin Sutra.

Summary from Wikipedia, CC BY-SA 4.0.