In Part 1 of 3, the Rangers track a notorious horse thief, and Gus and Woodrow are promoted to captains after their leader, Capt. Scull (Val Kilmer), abandons his men to search for his beloved horse that is stolen. Also: Gus courts Clara, a local Austin beauty, and Scull's wife takes up with Jake Spoon, a young Ranger.
Gus and Woodrow are ordered by the governor to rescue Capt. Scull from a Mexican bandit who is holding him for ransom; Comanches raid Austin and burn much of it to the ground; Woodrow worries that Maggie's baby doesn't belong to him; and Gus becomes convinced that Clara is going to marry another man.
Seven years later, Gus grieves for his late wife and Woodrow gets jealous over the amount of time Jake is spending with Maggie, but Woodrow refuses to accept Newt as his own son; Blue Duck confronts his dying father; Clara visits Gus in Austin; and Scull is approached in Boston to lead an expansion of the West.
In the highly anticipated prequel to the Emmy Award-winning mini-series, LONESOME DOVE, Texas Rangers Augustus McCrae (Steve Zahn) and Woodrow F. Call (Karl Urban) are now young men dealing with the ever increasing tensions of adult life - Gus with his great love, Clara (Linda Cardellini), and Call with Maggie (Elizabeth Banks), the young prostitute who is in love with him.
