"First Son of Texas" Eli McCullough must survive a frontier Comanche attack in 1849 and lead his family's empire through difficult times in 1915.

Young Eli must learn how to live among the Comanches in 1849. In 1915, Eli and Pete clash over how to respond to an unexpected attack on their home.

Young Eli trains as a warrior, but makes enemies in 1849. In 1915, Eli and Phineas struggle to help the family in Austin while Pete faces his demons.

Young Eli faces a test of survival; the McCulloughs enact a dangerous plan to take the fight to their enemy.

An enemy forces Young Eli to question his loyalties in 1849. In 1915, the McCulloughs' past comes back to haunt them with deadly results.

Young Eli makes a choice with dangerous consequences in 1849. In 1915, the McCulloughs deal with a tragedy while Jeannie seeks to save the family.

Young Eli must navigate tribal politics; a crisis forces Pete and Sally into a decision that will change the family.

Prairie Flower is torn between love and duty in 1849. In 1915, Pete grows closer to Maria while Eli brings Phineas in on a dangerous secret.

Young Eli is forced to trust a strange ally to survive in 1849. In 1915, Eli's past guides him to a choice that puts him at odds with Phineas.

The tribe faces an unexpected return in 1849. In 1915, Eli's plan for the future forces Pete into a life-or-death decision about his loyalties.

Young Eli leads a daring Comanche raid into Mexico in 1852; in 1915, the McCullough family confronts a threat to their growing oil business.

After a devastating attack, Young Eli must help the Comanches regroup in 1852; in 1915, Pete's return causes fractures in the McCullough family.

Young Eli's Comanches must survive a dangerous journey in 1852; in 1915, Eli and Pete are forced to work together to deal with a new enemy.

A new danger reveals old wounds in Young Eli's tribe in 1852; in 1916, Eli and Phineas try to fight off Standard Oil as Maria Garcia returns.

In 1852, Young Eli is forced hide a deadly secret; in 1916, Maria's return brings devastating consequences for the McCullough's oil business.

In 1852, Young Eli must protect Ingrid; in 1916, a new attack from Standard Oil forces the McCullough family to come together.

The Comanches go to war in 1852; in 1916, the McCulloughs' fight with Standard Oil reaches a breaking point; Eli takes a scalp.

In 1852, Young Eli's Comanche band are forced to survive on their own; in 1916, the McCulloughs search for Maria; Jeannie discovers a devastating secret.

In 1852, Young Eli's tribe encounters soldiers that make an unexpected offer; in 1916, Pete makes a decision that could tear the family apart.

In 1852, Young Eli is forced into a life-changing decision; in 1916, Eli wages a final war with Standard Oil, forcing a confrontation with Pete.