Ronnie and Professor Stein turn into Firestorm and destroy the singularity, but at the cost of Ronnie's life. Six months later, Barry is now working on his own to avoid hurting any more of his friends and family; Cisco works in the police department alongside Joe and his metahuman task force, and Caitlin works at Mercury Labs. The city holds a ceremony honoring the Flash for his work in saving the city where they give him the key to the city. At the ceremony they are attacked by Al Rothstein whose strength and size manipulation prove too much for Barry to handle on his own. He is convinced by Joe and the others that he needs help in taking down certain metahumans and Barry defeats Al by allowing him to absorb too much radiation. In his dying breath, Al tells Barry that he was sent to kill him by someone named Zoom. Barry also receives a hard drive from Eobard Thawne containing his confession to killing Nora that finally proves Barry's father's innocence. They throw a party where Henry tells Barry that he won't stay in Central City, thinking that it could hold back Barry's duty as the Flash.