In the subterranean depths of the New York City subway system, a fleet of living, sentient transit trains must survive their daily runs under the rule of "The One"—an omnipotent R62A (1) Train who acts as a strict, deadpan classroom teacher wielding reality-bending cosmic powers to enforce MTA regulations. A mix of modern, cocky new trains (like the R211), rusty local veterans (R68s, R46s), and tough work engines. They are not trying to get straight A's; they are just trying to get through the morning rush hour without having their engines banished to the shadow realm.