Conversation so far:
What was the first screenplay he was involved in?
Orci and Kurtzman began their writing collaboration on the television series Hercules: The Legendary Journeys, after being hired by Sam Raimi.
What happened during Hercules?
After actor Kevin Sorbo suffered a stroke, the duo were required to come up with inventive ideas to minimize his appearances on screen.
Did they pull it off?
Due to this work, they became show runners at the age of 24.
What did they do next?
They were also involved in the sister-series to Hercules, Xena: Warrior Princess.
What did they do on Xena?
CANNOTANSWER.

Question: What project were they involved in next?
Self-contained rewrite: What project were Orci and Kurtzman involved in next?