Naughty Dog begins development of The Last of Us, the base game to which Left Behind is a prequel DLC.
The original game The Last of Us is released on PlayStation 3 receiving critical acclaim.
Naughty Dog announces The Last of Us: Left Behind DLC to expand on Ellie and Riley's backstory.
The Last of Us: Left Behind DLC is released on PlayStation 3.
Riley arrives at the abandoned mall to meet Ellie, starting their reunion and setting the stage for the events of Left Behind.
Ellie and Riley spend time exploring the dark and dangerous mall together, reminiscing and bonding over their shared past.
During their exploration, Ellie and Riley encounter several Infected, heightening the danger of their journey and forcing them to defend themselves.
Through conversations and flashbacks, Ellie and Riley remember their time together before the outbreak, revealing their close relationship and personal struggles.
Ellie and Riley share a heartfelt moment dancing together at an arcade, symbolizing hope and their deep bond despite the bleak world around them.
Riley confesses to Ellie that she has been recruited by the Fireflies and will be leaving soon, causing tension and emotional conflict between them.
Ellie reacts to Riley's decision to join the Fireflies, leading to a physical and emotional confrontation that tests their friendship.
An avalanche causes part of the mall to collapse, separating Ellie and Riley and escalating the dangers they face individually.
Ellie finds Riley trapped and injured after the collapse and helps her escape, strengthening their bond and signaling Ellie's loyalty.
Despite the risks, Ellie and Riley choose to stick together and face the challenges ahead, reinforcing the theme of friendship and survival.