Once upon a time warp
In the blackness of inner space, the survivors of the shattered empire of Krypton built a wondrous new world, Argo City, protected from the elements by a membrane dome, powered by a force center called the Omegahedron.

Then, one fateful day

a beautiful girl named Kara, unaware of its vital esence, played with the Omegahedron and sent it tumbling into other space and off to a planet called Earth. It's loss could mean the end of her world. It's arrival could spell disaster for Earth. Only Kara can plunge through the Time Barrier and retrieve it. For she has the super powers of Superman. She is his cousin--
SUPERGIRL