The Venjix computer network is laying ruin to the entire planet, and the human race has retreated into the environmentally shielded city of Corinth.

As Venjix grows stronger, it becomes clear that the Rangers need more than three operators to defend the city.

When Ziggy is charged with finding the new Green Ranger, he finds the perfect candidate in Tenaya 7, until he realizes she's a machine working for Venjix!

Scott is flooded with memories of his brother when he returns to Marcus' crash site in order to retrieve an over thruster core the Rangers need for the new Megazord configuration.

While attempting to overcome a power problem with the Rangers' new Zord configuration, Doctor K is haunted by a terrible mistake.

When Venjix sends an attack bot from Dillon's past to infiltrate the city, Dillon is torn between destroying the bot, or finally finding the answers to his past.

Seeking answers to Dillon's past, the Rangers go outside Corinth to a place Dillon thinks he remembers, unaware that it's a trap set by Venjix himself.

The Rangers once again find themselves saved by the Gold and Silver Rangers.

As the Rangers take a more offensive approach against Venjix, the virus traps the citizens of Corinth inside their own dome and proceeds to suck all the air out of the city.

The Rangers learn they must return to the factory and destroy the Venjix Doomsday Box that is being built.

In an effort to impress his father, Scott makes a reckless trip out to the wasteland.

When an Attack Bot puts all of Corinth's men to sleep, it is up to the girls to suit up and defend Corinth.

Truman discovers that Dr. K was responsible for creating the Venjix Virus.

When Dillon discovers that the two keys to his watch fit together to play another song, he uses it to try to reach Tenaya 7.

Dillon fears the virus will take him over.

When the magnetic blast goes off and all the electricity goes out in Corinth, Venjix moves to take the city.

The Rangers race to insert a virus into Venjix before he takes over Corinth.