After locating an underwater entrance to the spaceship, Neri and Jason enter the craft where they find some of her father's belongings. After taking the objects back to ORCA to study, one displays a holographic message from Neri's father that reveals how and why her people came to Earth - and that Neri has a sister somewhere on Earth. Kimberly challenges Mick to a race, but when she beats him, he refuses to pay up. When Dianne approaches Commander Byrne to ask for a boat to further her research into whale songs, Commander Byrne reveals to Dianne the Top Secret plans for the construction of ORCA City - and she wants Dianne and Winston to do the oceanographic surveys, sidetracking their current research.