The CW has released an official description with some spoilers for the Tuesday, June 25 episode of The 100 which is called “The Old Man and the Anomaly.”
Here’s how they describe it:
MURPHY MAKES AN OFFER – Octavia (Marie Avgeropoulos) and Diyoza (guest star Ivana Milicevic) make their way to the mysterious anomaly in search of the Old Man. Meanwhile, Murphy (Richard Harmon) has an offer for Emori (guest star Luisa d’Oliveira). Eliza Taylor, Bob Morley, Paige Turco, Lindsey Morgan, Tasya Teles and Shannon Kook star. The episode was directed by April Mullen and written by Miranda Kwok (#608). Original airdate 6/25/2019.
UPDATE: The CW has finally released some preview photos! You can look at them below.