Nash Wells (UE-33)

Harrison Nash Wells is a doppelgänger of Harrison Wells.

Early life
At some point, Nash travelled to Earth-26 but it was invaded by psychic Starfish, and he had to use a neural splicer in order to stop the invasion.

At some point in 2012, Nash went to Earth-719 in order to find a rock with valuables crystals in it. When returning to his camp, he found a girl who took some of his food after disabling his security drone. The girl introduced herself as Maya and revealed that the rock had a treasure in it. When Nash told her that if her parent ask where the hat came from, she should respond that she earned it. The girl then revealed that she doesn't have any parent anymore. Nash then decided to adopt her.

At some point, Nash encountered the Council of Wells but despite their great intelligence, he considered them as idiot.

At some point in early 2019, Nash and Maya travelled to Earth-13 to retrieve an emitter inside a mountain. This operation was a disaster since Maya felt and died.

Tracking the Monitor
In 2019, Nash traveled to Earth-1 in search of Eternium. He broke into McCulloch Tech in search of it. The next day, Nash continued to track eternium, when he was found by Cisco Ramon and Iris West-Allen. He appeared and pinned Cisco to the wall when he tried to introduce himself. Nash asked why they were following him and pulled out a ruby that could give its victims nightmares. When his gauntlet detected eternium around Iris, he approached her, but she tasered him and they brought him to The Central City Citizen office. When he woke up the two of them tried to befriend him, but he refused and revealed that he win in search of eternium before escaping. Later, in the ally where he met Cisco and Iris, he opened a manhole where eternium is detected.

The next week, Nash has bugged Cisco with to get information such as the Flash's identity. After hearing their conversation about saving Ramsey Rosso life with a cure at S.T.A.R. Labs. Nash appeared a made a deal with Them to "find" a cure for Rosso's life in exchange for an "Anti-vibrational crypto-circuit". Nash led them to McCulloch Tech and inform them about a bio-regenerative that McCulloch Tech stole from the dominators during and "Invasion" years ago. After they broke in, Nash knocked out two guard that almost caught them and led them to the lab. They then investigate the lab, but he and Barry went to investigate a noise and when they come back Cisco inform them that regenerative is not there, and they all escape with a smoke bomb. After being threatened by Cisco, Nash left and went back to the sewers where the crypto circuit projected a hologram of Mar Novu going through a wall. Believing to have found him, Nash started to dig.

Days later after digging a bit he was interrupted by Joe West who wanted to question his intention but Nash refused and after a brief fight his gauntlet caused an explosion that cause a cave-in, and they were both trapped. Nash had an argument with Joe about his optimistic but because he was furious, Nash shot the debris but cause a gas line which briefly started a fire burning 87% of the oxygen giving them approximately 42 minutes to live. When trying to cause an explosion, Joe revealed that the reason why he has faith in people was because he has known that his son would die in a Crisis. When Nash was about to trigger his gauntlet, the Elongated Man saved them at the last minute. Back at S.T.A.R. Labs, he still didn't tell them why he was digging but after they told him that they could help, Nash revealed to see him tomorrow morning because he knows how to save Barry from his fate.

The next morning, he explained to Team Flash that the cause of all their problem is actually the Monitor because he thinks he is a false god, and he would kill him to prove it. Barry tried to run toward the wall he was digging only to realize that it was protected by eternium which is why he need a device that could emit ultraviolet to cause a breach. Later, he went to the Central City Citizen to find the device he detected with his gauntlet only to find Maya's doppelgänger Allegra Garciaand he discovered that she was a meta that can emit ultraviolet according to his gauntlet. Allegra agreed to help him with an explenation about the Multiverse and doppelgängers. In the sewers, Allegra learned during their discussion that her boss' husband is actually the Flash but when she tried to use her power to break the wall, she failed. Later, Nash would encourage her to try again and revealed that he figured out that she didn't use her power because she feared that she could become like her cousin. Allegra then tried again and succeeds, giving Nash enough time to take a picture of the code. Nash would return to The Central City Citizen with Allegra. After Allegra went to sleep on the couch, Nash contemplated her on last time as a reminder of his daughter.

Trivia

 * Compared to common doppelgänger of Harrison Wells, he is a geologist instead of a scientist.
 * With him appearing in the crossover, he is the version of Wells that has appeared in the most show in the Arrowverse.
 * He is the third version of Harrison Wells to have a daughter.