As Big Ben strikes six, visitors walk out of The British Museum and night falls. After a security guard walks down one of the many corridors in the museum, a mummy open his eyes, climbs out of his display and walks to a glass case where a stone tablet is stored. He removes the tablet, but before he can take a picture of the back of the tablet, a security guard catches the thief. The mummy throws the camera at the guard and strikes the guard’s flashlight. Under the cloak of darkness, the mummy runs from the guard, who is blowing a whistle and yelling for the thief to stop. More guards appear and try to stop the mummy, however, he leaps onto a statue and then crashes through a window.

Two men at an arctic base listen to a news report about the theft and are attacked by a man who shoots various pieces of equipment in the lab and while standing in the shadows, the shooter tells the two men that he has provided darkness to hide his identity otherwise the men would “meet their doom.” Commenting that the blue liquid on his sleeve, which was splashed on while shooting the room, is disgusting, he orders the men to take him to their latest find, the Jackal’s Bane root.

One of the men steps on an alarm button on the floor alerting Breaker at Joe headquarters about the attack at the Antarctica base. Flint, who is told about the distress call and is standing next to Scarlett and Lady Jaye, who are sunbathing on the roof of the headquarters, tells Breaker to alert Snow Job and Frost Bite.

The two polar savvy Joes attack Firefly, the shooter terrorizing the two arctic researchers, after he melts the ice covering the plant and rips it from the ground. However, Firefly evades Snow Job’s shots and the snowpedoes from Frost Bite’s Snow Cat and flies away in a Cobra Trubble Bubble. He flies into a giant Cobra head that emerges from under the snow, and then the head sinks into the water after Firefly flies inside. And the head, which is part of a Cobra submarine, escapes from the Joes, who return to the research facility.

Frost Bite despairs that they had a Dragonfly and a Snow Cat and were still unable to catch Firefly, however, one of the researchers notes that the Cobra agent can be tracked since a radioactive liquid was splashed on Firefly’s sleeve. At Joe headquarters, Lady Jaye wonders who could have robbed the research facility and Flint explains that the thief was Firefly since he is the only Cobra agent who would go to such pains to conceal his identity. Breaker reports that the Cobra sub is sailing to Madagascar and Flint, Lady Jaye and Shipwreck sail to Pirate’s Cove, which, according to Shipwreck, has been a port for smugglers for centuries. Curious as to how Shipwreck knows about smuggler ports, Flint hears Polly squawk: ”Shipwreck’s a crook! Shipwreck’s a crook!” And the sailor growls at his fine-feathered friend.

The Cobra sub pulls into a cave and Firefly tells Cobra Commander that since his mission has been accomplished, he expects his payment to be wired into his Swiss bank account immediately and tells Cobra Commander never to use his name. As two Cobra technicians translate the stone tablet stolen from the British Museum, the learn that they need to mix two parts of Jackal’s bane with crushed swamp moss. However, Geiger counters are triggered and Cobra Commander demands to know what is going on. A Cobra agent reports that Firefly has returned covered in a radioactive tracking paint. Cobra’s leader demands that the lab be evacuated and that the personnel should prepare for attack.