Animorphs - Season 1 (1998)

The Andalite disk is still lost and the Yeerks wish to barter for it: they will trade the disk for an Andalite. Jake and Marco trick a Controller into capturing an actual animal, and think they've gotten away with the disk clean. Meanwhile, the Sharing moves forward with its plans to harvest more Controllers, and the compromise over the disk turns out to be a trap. Hopefully, the Animorphs will be able to outsmart the Controllers.

It is now certain that Tobias is stuck in morph. Rachel decides to rescue Melissa Chapman, who is about to be infested by the Yeerks. However, her father is an important controller himself, and Rachel is caught in cat morph and taken to Visser Three. The Animorphs have to rescue Rachel and make a decision to not endanger themselves recklessly.

Cassie and Tobias receive a different thought-speak, and suspect that there is another Andalite on Earth. Visser Three has also received wind of this other so-called Andalite, and it is a race between the Yeerks and the Animorphs to see who gets to the Andalite first.

The Animorphs discover that a certain type of oatmeal is a stimulant to the Yeerks, and they are unable to control their hosts' actions. However, the usage of this "drug" also affects the hosts, but the Animorphs know they must use this advantage to inflict some serious damage upon the Yeerk pool.

Ax, unfamiliar to his new surroundings on Earth, tries to fit in with his new friends. After making the mistake of trusting humans with technology, he must fix his error by Andalite code, and fight Visser Three alone.

Jake's father is almost ready to open the Health Wellness Center, a division of the hospital he works at. At dinner, Jake found out that Victor Trent (also known as Visser Three) is a partner of his dad's in the creation of the health clinic. Jake went to help his dad, and there was a lot of security, but he had to leave. The Animorphs investigate why they had lots of security - the infestation of the governor. Ax scans Marco's video card to respond to all human codes. The Animorphs enter the building as roaches, and searches for the Yeerk Pool. Once they find it, ...

After the Animorphs successfully emptied the Yeerk pool, Ax alerts the group that Jake is a Controller. The Animorphs have to now tie Jake up for three days to starve his Yeerk from Kadrona Rays. Jake and the Yeerk battle it out mentally to see who is the strongest while the other Animorphs have to keep "Jake" from morphing to escape their grasp.

After Cassie and Rachel save a boy from a crocodile pit, Cassie begins to lose control of her morphing ability, the result of an allergic reaction to the crocodile DNA. Meanwhile, Cassie has been invited to the Larry and Linda Show where the famous star, Jason Jon McCole is also a guest talking about The Sharing. The Animorphs must find a way to stop Jason Jon McCole before millions of rabid female JJM fans decide to join The Sharing.

While Rachel is struggling to decide if she wants to move away with her father, Visser Three sets a cunning trap. He captures Ax and lures in the rest of the Animorphs. When it all looks hopeless, a mystical figure, the Ellimist, offers the Animorphs a dangerous choice.

Rachel's amnesia causes her to forget everything she knows, including everything about being an Animorph, and the battle against the Yeerks. She unknowingly wanders into a human-Controller infested area and is about to be taken by the Yeerks. Marco, Jake, and Cassie have to not only save her, but restore her memory.

Jake finds out that Visser One will be at the EGS Tower, where the Yeerk Kandrona is. Now, the Animorphs need a way to get in and destroy it. However, Vissser Three places a morphing detector inside the tower; Jake and Marco get captured and taken to the Yeerk mother ship via a spacecraft. When Jake and Marco escape and search for a way off the ship, they discover a terrible secret: Marco's mother lives, in the form of Visser One.

Cassie and Rachel are able to break the Kandrona, and escape to Cassie's barn. Marco, very reluctantly, and Jake find a way to escape the Yeerk Mother ship. They hijack a Yeerk blade ship, and with the aid of Ax, they are guided back to Earth. Now the Animorphs discover that a new enemy has been revealed.

Ax has created a device that allows an individual to relive their most cherished memories. Tobias uses it to relive his pre-Animorph life. He relives meeting Rachel and first acquiring animal DNA. Likewise, Ax gets a taste of reliving his days. Tobias remembers how awkward Ax was at first when he became human.

Jake wishes that he had never met Elfangor. Unfortunately, his wish gets granted, and the group goes back to a time where they never met him, except Tobias. Now, all of the former Animorphs get infested by Yeerks, and Tobias must find a way to avoid being infested next.

The Animorphs discover that the Yeerks don't have enough Kandrona Rays, so a lot of Controllers are getting sick, like Tom. One of the Controllers is science teacher, Mr. Perkins, who is now on a crusade to free other Controllers. Marco, Jake and Mr. Perkins are all on a hunt to save Tom, but he escapes. Tom comes back and tries to capture Mr. Perkins, but Jake as a tiger, and Marco as a wolf come to his rescue. Later, Jake and Mr. Perkins talk about how they will help each other in the future.

At the basketball final, the Animorphs discover that all of their enemies will be in one place, so they must be cunning in their tactics. However, a plan goes horribly wrong as Jake is trapped. The Animorphs must now split up to find the disk and free Jake!

The Animorphs are separated from each other with enemies everywhere. Rachel may have saved Tobias, but Jake is still in Tom's clutches. The remaining Animorphs are close to being infested by the Yeerks. While dodging Yeerks, they have to rescue Jake as well.