Ep 1. A Warlike Welcome

Yu-Gi-Oh! ARC-V season 3 episode 1, titled A Warlike Welcome, begins with the arrival of the Leo Corporation's president, Declan Akaba, to the Synchro Dimension. After winning the Friendship Cup in the previous season, Yuya Sakaki and his friends are invited to participate in the Maiami Championship, a tournament that will determine the best Duelists in the world. Declan plans to use the championship as a way to gather information about the mysterious enemy that threatens the Four Dimensions.

As Yuya and his companions explore the city, they encounter a group of Duelists known as the Battle Beast Brigade. These fierce warriors challenge Yuya to a Duel, with the winner claiming ownership of Yuya's recently acquired Pendulum Dragon cards. Yuya accepts the challenge, eager to prove his worth as a Duelist.

Meanwhile, Declan meets with his ally, Riley Akaba, who reveals that she has discovered the identity of the enemy they are up against. They are members of an organization known as the Academia, who seek to conquer the Four Dimensions by eliminating all beings that possess the ability to cross between them. This includes Duel Monsters and the Pendulum Summoning technique used by Yuya and his friends.

As Yuya prepares to face the Battle Beast Brigade, he finds his confidence wavering. He doubts his ability to defeat such powerful opponents and worries about the safety of his friends. However, his resolve is strengthened when he encounters a young boy who idolizes him. The boy tells Yuya that he believes in him and reminds him of the power of Duel Monsters to bring people together.

Refocused, Yuya enters the Duel with a newfound sense of purpose. The match is intense, with both sides using all their skills and strategies to gain the upper hand. Yuya struggles at first, but his creativity and adaptability allow him to turn the tables on his opponents. In the end, he emerges victorious, earning the respect of the Battle Beast Brigade and solidifying his standing as a top Duelist.

As the episode comes to a close, Declan and Riley continue to gather information about the Academia. They discuss the possibility of recruiting allies from other Dimensions to aid in the fight against their common foe. Meanwhile, Yuya and his friends bask in their victory and prepare for the next stage of the Maiami Championship.

Overall, A Warlike Welcome sets the stage for an action-packed season of Yu-Gi-Oh! ARC-V. As the threat of the Academia looms larger, Yuya and his friends will have to hone their skills and work together to protect the Four Dimensions and the future of Duel Monsters.