[7] Zack Thompson, a high school kid, finds a dying alien from a race of incredibly intelligent but physically weak beings called the Geldarians.

Seeing the human and knowing his crashed spaceship is going to blow up and kill them both, the alien fits him with the Tech Jacket, saving his life.

After saving his father (who is therefore aware of the Tech Jacket), Zack tells him about the crashed spaceship and dying alien.

Later, the Geldarians show up, thinking Zack killed their comrade Kelda (the alien) and stole the Tech Jacket.

Additionally, in his most recent appearance, Zack has become physically stronger than in his original series, which implies that his tech jacket strength has increased as well.