The Johnson continua drive is a mechanical means of getting from alternate universe to alternate universe. The continua drive was invented by Dr. Jacob Burroughs Johnson. A Human from an alternate universe.
Circumstances found him stranded in the Epiphany Trek universe where he was found by the USS Nia. Here he had run into a universe where his hyperdrive didn't work. After some long discussions with the Ane Dr. Johnson and his team the exchanged the Johnson continua drive for knowledge of the warp drive.
This eventually led to the creation of the Ane History Scouts