Tommy's Dam brings Joel and Ellie to Jackson County, Wyoming, months after Pittsburgh, where they find Joel's brother Tommy helping run a hydroelectric plant for his wife Maria's settlement. It is a short chapter built around a reunion and two fights with bandits, one at the dam and one at an old ranch house.
Part 7 of 12 in Main story
1. Hydroelectric Dam: the walk in, the reunion and the bandit attack on the plant. 2. Ranch House: chasing Ellie to an abandoned ranch and the fight there.
On the trail Joel tells Ellie how Tommy joined and then quit the Fireflies, and how the brothers parted badly. Armed guards stop you at the plant's gate, and Tommy greets Joel with a hug before introducing Maria, who runs the nearby settlement with her father. Ellie chats with Maria about learning to ride. Tommy offers Joel a photo he found in their old Texas house, and Joel turns it down. The two then watch the crew bring the generator back online.
In private Joel asks Tommy to take Ellie to the Fireflies, and Tommy refuses because he has a community to look after. The argument turns physical before bandits hit the plant and the brothers fight them off together. The plant schematics, a power plant map, the comic Foreign Element, Oliverio's pendant and the smoke bomb manual are found in this section.
Ellie takes a horse and rides off, and Joel and Tommy track her through the woods, fighting more bandits, to the Hidden Pines Corral ranch house. More bandits arrive while you are there. B. Pino's pendant and the comic Zero Point are the two collectibles in this section.
At the ranch Ellie confronts Joel for planning to leave her with Tommy and brings up Sarah, insisting she is not his daughter and that they are fine together. Tommy had agreed to take her after the attack, but on the ride back Joel decides to see the trip through himself, and Tommy tells them where the Fireflies are before they say goodbye.
Image: Naughty Dog / PlayStationLakeside Resort
Lakeside Resort jumps to winter and puts you in control of Ellie near Silver Lake, Colorado, hunting with a bow and searching for medicine. She runs into two strangers, David and James, and for part of the second half the game switches you back to Joel.
The University
The University sends Joel and Ellie on horseback across the University of Eastern Colorado near Boulder, looking for the science building where Tommy says the Fireflies are based. It mixes quiet exploration with a dorm full of infected and a fight against armed looters inside the lab building.
Jackson
Jackson is the short closing chapter of the main story: you play as Ellie, walking through the woods with Joel toward Tommy's settlement in Wyoming in the spring of 2034. It has one section, the Epilogue, and one collectible, the comic Singularity.
Hometown
Hometown is the prologue chapter of The Last of Us Part I, set in and around Austin, Texas, on the night the infection breaks out in September 2013. You play as Sarah Miller exploring her house, then as her father Joel as the family tries to flee the city with his brother Tommy.