Attack on the Pro-bending Arena

The Attack on the Pro-bending Arena was one of the early battles of the Equalist revolt. It occurred when undercover Equalist agents entered the arena and began attacking the metalbending officers that guarded the place once the White Falls Wolfbats won the tournament final in order to make spectators hear Amon's speech about equality and show them his ability to take bending away, ensuing a battle at Lin Beifong and Avatar Korra's attempts of halt.

History
While training for their championship match, the Fire Ferrets heard Amon threaten the United Republic Council to cancel the Pro-bending Tournament final or there would be "severe consequences". Korra and her teammates rushed down to City Hall, where the entire council had decided that the match should be canceled. When the decision was about to be made final, Chief Lin Beifong arrived and convinced Tarrlok to reconsider the decision, and at the chief's offer to protect the arena and the spectators along with their metalbending officers, the waterbending councilor changed his vote being supported by the other members less Tenzin.

Meanwhile, the Lieutenant informed Amon that the council had defied his warning, to which Amon replied that everything was going according to plan.

At the Pro-bending Arena, Lin had her metalbending cops scour the entire arena for anything strange, but they foud nothing. The championship match played out as normal. The Wolfbats broke many of the rules, such as several illegal headshots and bending a disk from their opponents' zone, but the referee missed these moves and the Wolfbats claimed a knockout victory in round three.

Battle
After Tahno and the Wolfbats won the championship, undercover Equalists began revealing themselves in the audience, pulling electrified gloves out of their popcorn cartons and covering their faces with their clothes. They used the gloves to electrocute Lin, Tenzin, the other metalbending officers on duty, and also the announcer, Shiro Shinobi.

The Lieutenant appeared under the arena by the water, where the Fire Ferrets remained after being knocked out of the ring, and zapped the pool with his electrified kali sticks, knocking Korra and her teammates unconscious. He then tied the Fire Ferrets to one of the support beams of the ring.

Amon, along with other Equalists, approached Tahno and the Wolfbats in the ring. The trio attempted to fight back, but were quickly captured by Amon and his troopers. Tahno begged Amon to not take his bending away, even offering him the championship pot, but the Equalist leader ignored him. Amon then stripped each member of the Wolfbats of their bending, tossing them in the water below afterwards. He proceeded to give a speech to the audience, using the Wolfbats' failure to follow the rules as evidence that benders are corrupt and evil and how they, supposedly the best in the bending world, had been removed from their power in just a moment. He warned any bender in the audience to stay out of his way or suffer the consequences. Amon then addressed his followers by introducing the electrified gloves and saying that the revolution had begun. An equalist airship appeared above the stadium, dropping many ropes with platforms into the arena, breaking its glass ceiling, that the Equalists used to escape.

Meanwhile, the Fire Ferrets regained consciousness, and realized their situation. When they spotted Pabu nearby, Bolin called him over and spoke to him, telling the fire ferret to bite through the rope, which he eventually did. Lin and Tenzin also regained consciousness, noticing Amon and the Equalists escaping. After Pabu finished biting the rope, Korra made a water cyclone to help her reach the Equalists who were ascending to the ceiling, but ran out of water before she was high enough. Lin used her metalbending cables to catch Korra and they then continued to make their way onto the roof of the arena, where the two engaged in a battle with the Lieutenant and multiple Equalists after Amon escaped the scene. Lin used metalbending to prevent more Equalists from coming, and then saw a chance to get onto Amon's airship. She took this opportunity while Korra continued to fight the Lieutenant. The Avatar eventually knocked him off the roof, but the glass beneath her broke, and Korra once again started to fall. Lin noticed and abandoned her chance to attack Amon, instead using her metal cables to save Korra from falling again.



Back on the ground, Korra thanked Lin for saving her as the Equalists flew away on their airship. Bolin and Mako rushed to Korra, expressing their relief that she was alright. Tenzin then stated that "Republic City is at war."

Aftermath
Due to the destruction of the stadium, it was shut down, thus leaving Mako and Bolin without home. However, they were later offered a place to live at the Sato estate by Asami, and later a place at Air Temple Island by Korra.

Tarrlok was angry with Lin, saying that she had failed the city, and that Republic City's law enforcement needed a new leader. This, in addition to the Battle at the Equalist factory in the following weeks, led to her decision to resignate as the Chief of Police.