Marine biologist Tracy Winters was chosen by the company Future Dynamics for her marine biology research, diving, and swimming skills. After a meeting she was given a costume and told to sit in a machine with cocoon sections. As she waited worrying of what was to come a woman named Sunswift was flying from space heading for the machine. As she dove into the machine her powers radiated to Tracy and the others.
Once the machine had finished Tracy came out the machine and discovered her skin turned green. She was okay with what happened as a few of her friends weren't. Vandervecken then came and introduced Sunswift to Tracy and the others. Then all of a sudden the company's enemy was attacking four different places. Vandervecken told them what they had to do and told them were to go. Tracy was sent to California with Avatar to deal with a sea monster attacking the city. As they arrived they were attacked by the unknown enemy. SIlkie at first did not know what her powers were. But later figured out when trying to stop the horde of soldiers. After dealing with their enemy they had to deal with the sea monster. Silkie tried to see if she could control the monster but was whacked away by it, to which avatar thought was a strange idea. She then helped Avatar to tie up the creature. After the beast was dealt with they went back to Future Dyanmics.
Tracy Winters is a skilled swimmer breathe and dive at great depths. But after her mutation she gained the ability to fire bio-electrical blasts from her hands or generate it through her body, control of water and shape it to her desire and transform into a humanoid manta ray-like form, which allows her to fly or swim at great speeds.