Survival of the Striaton Gym! (Japanese: デントVS氷の挑戦者!サンヨウジムの危機!!Dent VS the Ice Challenger! The Crisis of Sanyou Gym!!) is the 140th episode of the Best Wishes series, and the 797th episode of the Pokémon anime. It first aired in Japan on September 12, 2013 and in the United States on November 23, 2013.
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While cruising for the next island, Ash and his friends were waiting for Alexa, who want to tell them the next island they are going to visit is the last island of the Decolore Islands called Paladin Island before they will arrive on Vermilion City, but then Porter arrives to tell Cilan he got a video phone call fom his brother, Chili and Cress. Then Cilan rushed as quick as possible, while Alexa is asking Iris who are Chili and Cress. Iris tells Alexa that Chili and Cress are Cilan's brothers and that all three of them are the Striaton City Gym leaders. Meanwhile, back to Cilan, he calls Chili and Cress, and they're saying they are waiting for him in Paladin Island, but they were not very happy about this, they got a problem there, so Cilan tells them he'll be there as soon as they arrive on the island. And finally, our heroes arrive on Paladin Island, while Alexa is releasing her Gogoat, and temporary leaves our heroes to find a new story once again. Cilan propose Ash and Iris to make a picnic and celebrate his brothers for arriving on this island.