Noah has returned to the Macon Plantation after his first escape attempt and begins to organize the Macon 7 escape using the "Freedom Map" he's acquired while held by Slave Catchers. John meets William Still and begins his and Elizabeth's journey into the Underground Railroad. August pretends to help a runaway slave escape slave catchers. Tom begins his run for Senate.
The Macon 7 meet to plan their escape only to find Cato is going with them. Noah asks Rosalee to run with them. John and Elizabeth learn how the Underground Railroad works. Tom meets on the plantation with the men he needs to impress to get the nomination. Facing more desperate life on the farm, August decides to enlist the help of his son, Ben, to go after runaway slaves.
John and Elizabeth receive their first "cargo" and meet her ex-fiancé, Marshal Kyle Risdin, throwing a serious wrench in their plans for the Underground Railroad. The slaves enlist Rosalee's help to steal Tom's official seal as they continue to prepare for the big escape.
Bill is discovered barely alive in his cabin and Tom realizes Rosalee and Noah have escaped from the Macon Plantation. John and Elizabeth deal with their slave abductors, eventually overpowering them with the unwitting help of Kyle. Tom promotes Cato to Plantation Overseer, which Cato quickly uses to finalize the plan for the rest of the Macon 7 to join Noah and Rosalee. They ignite the fields and escape.