Simone Martin (Sandrine Holt) is served a subpoena to testify in front of Senator Paley's (Dylan Baker) subcommittee.
Carrie organizes a celebration at a local bar, inviting Max (Maury Sterling), Dante, Anson (James D'Arcy), Stein (William Popp), Doxie (Clé Bennett), and Bennet (Ari Fliakos).
The episode was directed by Michael Offer and co-written by Anya Leta and executive producer Ron Nyswaner.
The website's critical consensus is, "'Species Jump' doesn't disappoint when it comes to the long-awaited reunion of Carrie and Saul as the season's disparate threads come together to form a tantalizing central conflict.
Tallerico credited "the tight writing and direction" and continued "it’s an episode that plays with what we know about these characters — Carrie’s recklessness and Saul’s brilliance — and reminds us just how ambitious this season has been overall".