Introduction to Elsewhere Part Two

Previously on Elsewhere:
Joan found an island while on a cruise. She found it was abandoned and used her newfound wealth to obtain possession of the abandoned island. While cleaning up the home she planned to live in while on the island, she was found by Diana. They hit it off instantly and decided to team up.

As the days progressed and improvements to the island and her property continued, she was found by two others. What are their stories?