Complex sentence: Shay meets Alex, learning that he was a previous subject of "Project Dandelion", and offers to help repair his ship in order to return to Loruna, beyond the Plague Dam, where Alex believes Shay's ship is heading.
Split into simpler sentences: Shay meets Alex, learning that he was a previous subject of "Project Dandelion". Shay offers to help repair Alex's ship to return to Loruna, beyond the Plague Dam, where Alex believes Shay's ship is heading.