As the seaQuest undergoes inspection, Lieutenant Benjamin Krieg has a close encounter with an unknown life form while in a seaCrab in the Tonga Trench.

When the creature lets him go, Krieg discovers a treasure trove of mysterious glowing stones; stones that may mean big money.

However, is the bigger threat to seaQuest the greed that overtakes the crew or the unknown life form?

When the air conditioning breaks down in the crew quarters, Krieg has no choice but to turn to "The Regulator".

He's a cut-throat black market trader who hides a shamed past with whom Bridger is familiar with and whom Lucas finds he can sympathize with.