Digimon Xros Wars Episode 4 Island Zone in Chaos

After introducing herself, revealing that the Digital World was broken up into Zones, Nene explains to the Fusion Fighters that a Code Crown fragment is proof of ownership of a Zone and gathering them all would allow one to rule the Digital World. After Nene teaches Mikey how to Zone Transfer, he and his friends arrive at the Island Zone where they save the Zone's elder Archelomon from a group of Gizamon searching for the Zone's Code Crown. After recognizing Jijimon, Archelomon says that the Code Crown is in a place that is very difficult to get to until they gather Digibites for an upcoming festival. While gathering the Digibites, Shoutmon befriends an Island Zone resident named ChibiTortomon. By that time, the Bagra Army's invading commander Neptunmon learns of the Fusion Fighters' presence from one of the Gizamon and receives orders from Tactimon to stop them with a fleet of Mantaraymon and Divermon. While Jijimon keeps Archelomon and the others hidden, the Fusion Fighters head underwater to infiltrate the Mantaraymon fleet and destroy them from within. When Neptunmon gets word of this, he sends Octomon to sink the hijacked Mantaraymon and drown its occupants! However, inspired by Shoutmon's words, ChibiTortomon aids the Fusion Fighters by DigiFusing onto Shoutmon ×2 to form Shoutmon ×2 Plus M, turning the table. However, ChibiTortomon's action results with Archelomon's location compromised as he is captured by Neptunmon. 

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