The Decisive Battle! DarkKnightmon vs. Xros Heart!

Digimon Xros Wars: The Young Hunters Who Leapt Through Time — Episode 21: "The Decisive Battle! DarkKnightmon vs. Xros Heart!"

Ep 1 Taiki Goes to Another World! Ep 2 Shoutmon Roars! Ep 3 The Rival, Kiriha, Appears! Ep 4 Upheaval in the Island Zone! Ep 5 The DigiMemory Shines! Ep 6 X4 Breaks Through the Crisis! Ep 7 A Volcanic Digimon's Big Explosion! Ep 8 The Brave General Tactimon Approaches! Ep 9 Dorulumon Runs with the Wind! Ep 10 Taiki Becomes a Knight! Ep 11 Burn, Xros Heart! Ep 12 Big Adventure in the Sand Zone Ruins! Ep 13 Taiki, Warrior of the Goddess! Ep 14 The Dance of the Warrior, Beelzebumon! Ep 15 Heaven Zone, A Trap in Paradise! Ep 16 The Black Knight Digimon Appears! Ep 17 A Miraculous DigiXros! Shoutmon X5 Takes Flight! Ep 18 Stingmon, Hero of the Digimon Jungle Ep 19 The Legendary Deckerdramon Stirs! Ep 20 Dust Zone, GrandLocomon's Great Scrap City! Ep 21 The Decisive Battle! DarkKnightmon vs. Xros Heart! Ep 22 Wisemon and the Secrets of the Digital World! Ep 23 Shinobi Zone, the Comic Ninja Battle! Ep 24 The Underachieving Monitamons Give It Their All! Ep 25 A Zone Collapses! Sparks Fly Between Taiki and Kiriha!