History
Thundra was the ruler of a female-dominated alternate reality. She first came to this universe in order to prevent her reality from being erased, by challenging the strongest male. She later became an ally of the Fantastic Four, and later even formed her own team of Lady Liberators.
She was one of the many heroes who joined S.H.I.E.L.D.'s alliance against villains after a mysterious Pulse hit the Earth and left a material called Isotope-8, desired by both heroes and villains.
So Shall Ye Reap[]
When Grim Reaper attacked the Alliance and his brother Simon (AKA Wonder Man) in order to find a version of Iso-8 developed by Simon, Thundra was deployed to clear some HYDRA soldiers out of S.H.I.E.L.D.'s way.
The Sting[]
Thundra was deployed to wreck a HYDRA science lab when Viper, Red Skull and Baron Zemo made a civil war erupt between the ranks of HYDRA. She was able to destroy the lab and incapacitate the scientific personnel.
Lockdown[]
When Savin tried to breach the Baxter Building with a squad of Servo Guards, Thundra was the one that accompanied the Agent in the fight against the villains. Thundra tracked down and confronted Whiplash, who was working with Savin, and was able to defeat him. Later, Thundra faced Savin himself in the Baxter Building, which saved very important nanotechnologic work Mr. Fantastic was developing.
Tech Up[]
While Havok was tracking down Kang, Thundra fought against the Wrecking Crew along with her fellow Lady Liberators, Tigra and She-Hulk. They emerged victorious.