This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.
Dodge City was an Earth city located in the state of Kansas in the United States of America. Wyatt Earp served as the marshal of Dodge City prior to taking his assignment at Tombstone.(citation needed • edit)
The metaphor "get outta Dodge" was often used when expressing one's desire to evacuate a certain location in a hurry. Captain Gabriel Lorca once expressed this sentiment when the USS Discovery was nearly pulled into an O-type star. (DIS: "The Butcher's Knife Cares Not for the Lamb's Cry")