The Great Angolmois Freezing Operation is the thirtieth episode of Beast Wars II. It first aired in Japan on November 11, 1998 on TV Tokyo.
While Bighorn and Lio Jr relax with the squirrels in the forrest, the Cybertrons work on equipping the Tako-Tank with an gun that will freeze the Angolmois Energy flowing out of the ground all over the planet (as a result of the approaching Nemesis). Scuba takes the Tako-Tank to a series of exploding geysers, and freezes one. Meanwhile, Drillnuts is at the Cybertron base, looking over a series of blueprints of the new weapon. Back at the geysers, the Jointron Brothers have arrived carrying a huge boulder. They use the boulder to cap one of the Angolmois geysers. They have another geyser to cap, and look around for a rock. They only see a gigantic boulder, so they form Tripledacus in order to lift and place the boulder. Diregun is spying on their activities, and reports back to Galvatron. Galvatron, enraged, contacts the Nemesis and orders it to suck the energy from the Jupiter-like planet it is passing. The Nemesis sucks its energy and fires it towards Gaea. The resulting blow causes more geysers to erupt and those that were capped to explode again. The Cybertrons, unwilling to watch Gaea be destroyed, vow to defeat the Destrons before they destroy the planet.
The Cybertrons attempt to refreeze the new eruptions, but most of the attempts are foiled by Dirgegun and Thrustol. The two Destrons quickly melt the frozen energy sites with their weapons. Gigastorm arrives and aids in preventing the Angolmois from being frozen. Scuba turns the freezing ray on Gigastorm and freezes him. The Cybertrons and Destrons battle as Gigastorm attempt to thaw himself. Thrustol runs at the Cybertron, but they step out of the way at the last second. The horn on Thrustol's chest hids Gigastorm and part of him refreezes. Meanwhile, Lio Jr and Skywarp fight Hellscream and Max B on top of an iceberg Tripledacus is holding up in the air. After all the Transformers jump from the iceberg, Tripledacus throws it in an Angolmois Geyser and caps it. By now, Gigastorm has unthawed and attacks. Lio Jr, Santon, and Skywarp merge to form Magnaboss and drive the Destrons off.
The Cybertrons continue to freeze the Angolmois Energy, but Lioconvoy believes this plan will only be a temporary fix. Meanwhile, the Nemesis draws closer to Gaea.
In the episode
English dub changes
Note: All characters are listed in order of their first appearances in the episode. The time they appear is the time from the Japanese dub..