The Kardashian trip to Cuba continues. Included: A disagreement results from Kim's commitment to her work engagements on Mother's Day; Scott comes down with a major case of FOMO; and tensions rise over Kylie's Puma endorsement.

When Kris sees Khloé struggling, she urges Rob to reconnect with his sister; Kourtney worries about giving Scott mixed messages; Kris pushes herself too far in order to keep up with her daughters' workouts.