Quick recap
2018, fifteen years after Judgment Day. John Connor doesn't run the Resistance yet, but he speaks to survivors over the radio. During a raid, he learns Skynet is developing the T-800. Marcus Wright, a death-row inmate executed in 2003 who donated his body to Cyberdyne, wakes up with no memory and meets teenage Kyle Reese and a girl named Star. The two get captured. John knows Kyle has to survive to become his father. Marcus learns he is a human-machine hybrid Skynet built as bait. He rips out Skynet's control over him and helps John break into its San Francisco base. John fights the T-800, frees Kyle and Star and takes a blow to the heart. Marcus gives his own heart to save John, and the base is destroyed.

