During the night in the Ice Sector, a tower activates. The alarm goes off in response, but there was no sign of the towers activation.
The day following said activation, as the group went about their normal business…
"Ah..choo!" Tulip said sneezing. "Ugh. Anyone else feeling cold today?"
"A little bit, do you think there's something wrong in Lyoko?" Saaya asked.
"I dunno but I think I'm gonna stay indoors." Tulip said heading inside.
"What's with her?" Hope asked.
"Apparently elves are super sensitive to changes in nature." Sam said.
"He's right, even though there's a cold breeze in the air. I don't detect any supernatural disturbances." Medusa said as she approached wearing a sweater, glasses, pants, and black boots. "Hello children. I'll be joining as a Greek Mythology teacher for the rest of our time here."
"You sure it's a good idea to let her teach here? I mean, she doesn't seem like a kid friendly person." Jack whispered.
"No need to worry, I'm only sadistic when fighting my enemies so need to worry. Hehehe." Medusa said as she laughed kindly. "Besides, it'll be good to teach you all about many things from Greek Mythology." She said as she lightly pinched Jack's cheek before letting go.
Hope chuckled a bit at what he saw.
"Ta ta for now children~." Medusa sang a bit at the end before leaving.
"Wow… she's very, nice and motherly." Nana said.
"Well she is the reincarnation of Siren, but she also has memories of her new form as Medusa." Roy said.
"Yeah, well I still don't trust her." Jack said. "And will someone turn up the heater? It's freezing in here!"
"Yeah it is a bit cold. And why don't you trust Medusa?" Simon asked.
"She's named after an evil serpent woman. I think that's a red flag on it's own." Jack said.
"She may be named after one of the three Gorgon Sisters, but she is still Siren at heart." Azura said before leaving.
"Uh, back to Jack's point, it's freezing in here! What the heck is going on outside, a cold storm?" Hope asked.
"I'll just open a window and let a little sun in." Pinkie said doing so only for snow to be rushing in.
"Shut it! Shut it!" Dan shouted before he shut the window.
"Do you think XANA's launched an attack?" Aya asked rubbing her arms together.
"If that's true, why didn't the alarm go off?" Miu wondered.
"Maybe one of the activated towers went on and off for some reason." Al said.
"I think we have bigger problems then that." Twilight said checking the temperature. "It's -4 degrees."
"-4 degrees?! You've gotta be kidding me!" Saki said in shock.
"No joke. And it doesn't look like the decrease in temperatures stopping either. This keeps up, we'll be living in a new ice age." Twilight said.
"Miu, can you check to see if there's an activated tower or not? Because there's no way this is normal weather." Mari said.
"I think we have bigger problems. We can't even get to the factory in this weather, unless you wanna freeze to death." Hope said.
"I don't know if my fire magic is gonna help us get through, I can try to put a barrier of fire around us, but I don't know if it'll work." Vargas said.
"Yeah, and even my fire isn't hot enough to withstand this deep freeze." Flamberge said.
'It doesn't matter how cold it is. If we do nothing, XANA wins. So get on some winter clothes. We're going out there." Zexi said.
"Wait, how come David and the others aren't affected by this?" Jesse asked.
"Because we're ice users. We're used to the cold." David said.
"Then those who's natural element is ice have a chance to get to the factory without freezing to death." Selena said.
"So that means Francisca, David, Sayuri, Gray, Yusuke, Al, and Selena have to get over there." Hope said.
"Alright, you can count on us. Are you and the others ready, David?" Selena asked.
"Of course we are." David said.
"Alright then, to the factory!" Selena said as she and the others headed to the factory.
"We must hurry! Even in cold weather, you all could still catch a cold or even freeze to death." Sayuri said.
"Yes. Even though I died once, it won't stop me from helping you and everyone else!" Selena said.
"You realize that counts you too, right?" Gray said.
"Stop it! Look, we're almost there." Francisca said as they got into the factory. "Strange Viperia didn't attack."
"Its likely too cold for them to strike. This is a blessing. Let's hurry to Lyoko and settle this icy business." Yusuke said.
"Can do." David said.
It didn't take long for Jeremie, Aelita and Odd to follow after and for them to hurry to Lyoko.
"Of course the tower is in the coldest place on Lyoko." Gray said as they arrived in the ice sector. "At least there doesn't seem to be any obstacles."
They then heard a loud screeching.
"What was that?" David asked.
"I know that sound." Francisca said as rising from the digital sea were several mantas. "Mantas? Outside of Sector 5?!"
"XANA must've found a way to bring them here somehow." Al said.
"This could be a problem." Yusuke said as the Manta's started releasing mines as they flew over the land.
"We'll have to clear a path for Aelita so she can get to the tower. Any ideas on how to do it?" Al asked.
"We need to distract the mantas somehow." Yusuke said. "No...distraction isn't good enough. I'll go and see about eliminating them. You focus on the mines." He said leaping up as he jumped from mine to mine as he landed on a manta. He stabbed it with his katana. "You are in my service right now." he said steering it.
"That's clever of him, taking control of one!" Al said.
"As for clearing the mines...all we need is to take out a center one and it'll cause a chain reaction." Francisca said.
"Alright, allow me." Selena said as she formed a small sphere of water before firing it out as a thin laser towards a mine in the center, causing a chain reaction.
"Nice shot. We got a clear path." Gray said. "Let's hurry before they reset."
"Yes. The tower is just up ahead." Selena said as they continued on as the tower was in sight as they hurried and got Aelita inside the tower.
"Alright, mission accomplished." Al said.
"Okay, but Yumi's been hurt so...Return to the Past, now!" Jeremie said activating the RTTP.
The day soon restarted as the group was back at the school.
"Hello children, it looks like some of you have saved the day." Medusa said as she approached.
"Tell us something we don't know." Al said.
"I'll be teaching you about the origins of the three gorgon sisters. Until then, have a good day~." Medusa said as she walked away.
"Wow…" Hope said.
"What is it, Hope?" Al asked.
"Still astonished that woman's teaching? Or is it something else?" Jack asked.
"I think she's the ultimate Mother figure a teacher would die to have as a personality." Hope said.
"Be careful how you phrase that." David said. "I still can't believe we have to deal with Thomas Vincent again. But… I know how to put the guy in his place."
"Yup, I think it's time he'd be taught a lesson." Al said grinning devilishly.
"Meet me in the lunchroom after morning classes." David said.
"Alright, see you then." Mari said.
In the lunchroom…
"Okay...we're set, David. Thomas is headed your way." Ann said on her comm.
"Alright." David said walking to Rosa and whispering to her before moving up the line.'
"Gimme those meatballs, sweetie." Thomas said. David winks to Rosa, causing her to dump the whole pot of meatballs on Thomas.
"Haha. Now that is classic revenge right there." Jack said seeing Thomas storm out.
"Akane and Luffy may be mad at David for wasting those meatballs, but it was definitely worth it." Al said.
"Indeed. Let us never speak of this to those two meat hounds." Rarity said.
"Hahaha!" Al laughed as the others laughed as well.
"Yeah...this will be remembered for years to come." Rainbow said.