After receiving the Dragon Power Coin and the Dragon Dagger, Tammy then traveled to the command center and put Zordon out of commission and downloaded a virus on into Alpha 5’s programming. She the fought the Power Rangers and defeated them.
Being under Rita’s influence, Tammy became very sullen, and was even rude to Tommy when he questioned where she had been. With the rangers at their weakest, Rita decided the time to attack was now.
After Tammy had defeated a squad of putties without her powers, Rita gave her the sword of darkness, which not only enhanced her Dark Powers, but also acted as a catalyst keeping her under her evil spell. She then had Tammy transport Jason into the Dark Dimension, where he had to face Goldar. Tammy eventually took the honor from Goldar and faced Jason herself. Jason managed to narrowly escape her grasp when the other Rangers teleported him out.
While the Rangers where defending Angel Grove from Goldar, Tammy entered the command center, and attempted to sabotage it again. Alpha placed her in a stasis lock, but she was freed by Rita, who then made him grow. She then joined Goldar and Scorpina in fighting the Megazord, as Rita cast a spell to create an eclipse and remove the Megazord’s power. The Megazord separated and the Dinozords fell under the earth. When the Rangers retreated into the command center, Alpha revealed that the stasis lock the Green Ranger was kept in allowed her true identity to be – that of Tammy Hart.
Realizing that Rita’s spell was the reason for Tammy’s strange behavior, Tommy confronted her in the Youth Center, but she simply informed him that he and the other Power Rangers would soon be destroyed. Utilizing her Dragon Dagger that she received from Rita, the Green Ranger summoned her own Zord, the Dragonzord, to destroy Angel Grove. In the mean time, Alpha reestablished Zordon’s link with the dimension and the Megazord was recovered. Jason and the others managed to take down the Dragonzord and, when facing the Green ranger, Tommy destroyed the Sword of Darkness and freed Tammy from Rita’s spell. When she came to, Tammy realized the damage she had done and felt terrible, but Tommy assured her it was only because of Rita’s spell. Tammy accepted the Rangers offer to join them. With the, Dragonzord on their side, the Rangers now have access to Dragonzord in Battle mode, and eventually the powerful Ultrazord. At the command center, Tammy accepted Zordon’s rules of being a Ranger, and even received a communicator from Billy. The team of six have now turned into seven, also making her the first ever seventh Ranger.