Once the Flash had defeated Grodd, the Rogues returned the civilians to their homes. Unbeknownst to them, that plan resulted in the creation of the Reverse-Flash. Despite bickering between Leonard and Lisa as to who the real leader of the Rogues was, they formed a plan to send the attacking gorillas and their buses into the Mirror World. While the Flash sought out the leader of the gorillas, the Rogues turned to saving civilians from gorilla pillagers. Realizing that an invasion of war-like, talking gorillas was not their fortГ©, Captain Cold woke the Flash from unconsciousness and admitted that despite having only just double-crossed him, the Rogues would have to ally with the Flash to keep their city safe. However, once Leonard came face to face with his sister again, he turned on the Flash and rejoined the Rogues, just in time to witness the beginning of a gorilla invasion. They boxed him out of a traid,heist, and, in anger, Captain Cold turned to the Flash for help in fighting the new Rogues. Rogues RevolutionДespite her brother's efforts, Lisa was not as grateful as Leonard had expected and went behind his back to reunite the Rogues as their new leader. The hero created a battery powered by Speed Force energy to power the laser, saving Lisa's life. When he learned of the reason for Captain Cold's attack, the Flash promised to do all he could to help. Leonard learned that his powers backfired if he got wet and inadvertently encased himself in ice, from which the Flash extracted him. Hoping to get the Flash's attention, Captain Cold froze the river between the Gem Cities. Seeking revenge against the Flash, Leonard decided to eschew the Rogues' rules and kill him.

ДЄfter the Flash caused an EMP blast that rendered the Gem Cities without power, Leonard learned that the hospital caring for Lisa would not have enough reserve energy to power the laser that could save her from her cancer. Naturally, Leonard blamed himself - as did Lisa's boyfriend Sam, who was trapped within the Mirror World as a result of the experiment.

Her real body was left comatose, and afflicted with a malignant brain tumor. She was separated from her body into an astral form. While Leonard was imbued with the power of Cryokinesis, his sister was not so lucky. The Rogues placed their themed weapons into Elias' genome recoding device, and fused their DNA with the weapons. Darwin Elias that would make him powerful enough to stop the Flash in his tracks. After a sloppy attempt at a robbery from which the other Rogues had to save him, Leonard received an invitation from Dr. After a failed robbery, Leonard angrily pinned the blame on The Trickster and fired him from the team his frustration and guilt over the issue drove him to drinking. While leading the Rogues, Leonard grew increasingly frustrated that their high-tech weaponry was not enough to prevent the Flash from thwarting their every attempt at crime. As a survival technique, Snart and his sister ' Golden Glider' teamed up with some other members of the Flash's rogues gallery, thus forming the adequately named team - the Rogues.

Stealing a Cold Gun to use for his schemes in Central City, Snart developed the alias ' Captain Cold' when he was forced to fight the city's newest hero - the Flash. Though Lisa was an ice skating prodigy, Leonard's protective attitude and Lisa's appreciative acceptance lead her to give up her dream and instead follow her brother down a darker path. Into adulthood, Leonard, a bright mind, decided to pursue a life of crime and thievery. Leonard's only refuge, was when his nurturing grandfather would sometimes invite Leonard and his sister to visit him at the ice factory where he worked Leonard grew up to cherish the cold atmosphere as a symbol of his escape from abuse. His mother died when he was a child, forcing him and his younger sister Lisa to be raised alone by their father, who had not taken his wife's death well and resorted to alcoholism and physical abuse. Leonard Snart experienced a rough childhood.

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