Feeling isolated, unwanted, and unappreciated aboard the seaQuest, Lucas visits Node Three, a communications colony populated by other teenage computer geniuses.

Node Three is led by legendary computer hacker Martin Clemens, aka. "Mycroft".

However, Lucas soon finds himself caught up in the group's tampering with global finances and tampering's that have more motive than they appear.

When the crew of seaQuest are tricked into torpedoing a refugee ship containing Westphalen's daughter, Dr. Westphalen, Ford, and Shan are trapped trying to save her.

A brand new power plant which is set to supply energy to the whole world goes wrong and there is a danger of the polar ice caps melting.

Bridger decides he must sacrifice the seaQuest in order to save the world. Meanwhile, Lucas has a reunion of sorts with his father.