The Spacemarine appeared in the solar system through the Wrom-Hole, the Space-Vector and hovered over Earth for a while, then it sucked in the Mobots a Transporter with Mobots and a few B’Mati on board, and the Century with the Blaker docked in it. And then it vanished back in the Space Vector. The Streamer went after it to rescue their friends only to end up in the middle of a war between an Eastern and Western tribe who like the B’Mari lived in an aquatic planet. But these were not B’Mati although there were similarities, the only big difference was they did not live under the oceans as their sea became too polluted and poisonous, as the factions fought for supremacy they engineered a deadly creature that turned out into a pest they could not control. Some of the crew from both Ships and the Century were strategically place in close proximity to these creatures for observation, and the future of these aquatic sentient ultimately were in the hands of two unlikely rivals.