Attack on Yorktown Station

The Attack on Yorktown Station was engagement between Starfleet's Yorktown Station, the USS Franklin (NX-326), and Krall's Swarm fleet.

Prelude
Following the United Federation of Planets formation, former MACO officer, Balthazar M. Edison was given command of the USS Franklin (NX-326). Eventually, Edison, his crew and the Franklin went dissapeared while exploring the Gagarin Radiation Belt in 2164. It had been displaced by a wormhole and crash landed on Altamid. Edison and his surviving attempted to send a distress call, to no avail. Believing that the Federation had deliberately abandoned them, Edison along with Crewmen Wolf and Le went insane. Using the Ancient Ones energy transference technology to survive, Edison, Wolf and Le became the alien warlord Krall, Kalara, and Manas. They then captured alien to sustain themselves. Among them was Jaylah and her father. Their bodies became mutated from the energy transference and were indistinguishable from humans. Together, they used the the drone workforce and mining equipment for their own purposes.

They also learned about the Abronath weapon and then searched for next century for the other half of it. They then captured the Magellan probe and learned that the other half was aboard the USS Enterprise (NCC-1701) (alternate reality) under Captain. Krall then sent Kalara to Yorktown to lure the Enterprise under the guise of helping her rescue her crew. After the Enterprise entered the Necro Cloud and Altamid's orbit, Krall's forces attacked, boarded and destroyed the Enterprise. However, Kirk was able to hide his half abronath with Ensign Syl before the crew was captured and taken to his base.

At his base, Krall was able to force Syl to give him the other half of the Abronath. After Krall used it to kill Syl, Krall and his forces then prepared to attack Yorktown and then the Federation. His base then comes under attack by Kirk and Jaylah. However, Krall and his ships continued to prepare while Manas and his drones would deal with Kirk and Jaylah. During this time, Spock and Dr. McCoy freed the crew and took them back to the Franklin. After Manas was killed, the Enterprise crew then repaired the Franklin to stop Krall's fleet from killing Yorktown's inhabitants.