The biggest battle ever between Takeshi's army and the attacking force begins! The attacking force gathers people of all ages, including Mr. SASUKE, popular YouTubers, university students, doctors, and a legendary contestant who first participated in junior high! However, the attackers face total annihilation by the improved challenges and must inspire and help each other conquer Ueda’s Castle!

The first battle continues. The attacking force has survived the threat of annihilation when a terrifying new game, Strong Arm, begins. Devil's House and Mushroom Pong are also back, and Shinya Ueda participates in the final game. Is there a player who can conquer Ueda’s Castle and win 1 million yen? What will be the fate of Mr. SASUKE, who is determined to win?

The Battle of Watanabe's Castle begins! The attacking force is in trouble after their captain is captured. To save them, Hayato Tani rises to the occasion. The force is joined by a Winter Olympian, a Spartan racer, a former women's soccer player, and a pro wrestler. A new game called Block Block awaits them, plus the most controversial game yet. Will the attacking force conquer Watanabe's Castle?

The Battle of Watanabe’s Castle continues. The famous Strait of Gibraltar returns. In this game, players must cross a shaky bridge while dodging Takeshi's army, but there is a new obstacle that stumps even athletes of great physical strength. Bridge Over the Battlefield and Wall of Freedom, have also been scaled up. Can the strongest attacking force bring down Watanabe’s Castle?

The battle of the third castle begins. The attacking force has lost at Ueda’s Castle and Watanabe’s Castle, but Mr. SASUKE is back with his strongest pupil, swearing revenge! Boymen, a boy band from Nagoya, joins the force. But the attacking force will be confronted with extremely difficult challenges, such as From Right to Left and The Mushroom Pong World Cup. Can they make up for past defeats?

Episode 6 continues the Battle of Ennosuke’s Castle. Dragon God Pond, which no one cleared at Ueda’s Castle, is back. Kyoko Hamaguchi returns to Star Bowling with her father, Animal Hamaguchi! Then, a new star is born to the struggling attacking force! He will clear numerous obstacles with ease and give an impressive performance as he comes up against the stronghold of the Ennosuke’s Castle!

The final battle between the attacking force and Takeshi's army begins! Beat Takeshi, the lord of the castle, has finally arrived. The obstacles have been scaled up to maximum difficulty as the most powerful attacking force ever attempts to conquer Takeshi’s castle. A comedian betrays Takeshi's army and joins the attacking force, another crazy development at the climax of the competition.

Time for the final battle! Beat Takeshi’s army is gaining strength. The attacking force has met many obstacles without giving up. The elites of the attacking force approach the stronghold of the main castle. But an assassin summoned by the lord of the castle stands in their way. Will the attackers achieve their dream of conquering Takeshi’s Castle, or will they surrender once again?