Ep 20. The Mocchi Cannon

In the twentieth episode of Monster Rancher's first season, titled "The Mocchi Cannon," we join the gang as they head towards a town that's infamous for the Mocchi Cannon, an ancient weapon that has been used to ward off evil. They intend to see the cannon in action as they've heard great things about its power.

When they finally arrive at the town, they encounter a group of bandits who rob them of their money and their food. The bandits also tell them that the town has been experiencing strange occurrences, like their crops not growing and their livestock becoming sick.

The group decides to investigate what's causing all these strange happenings, and they run into a young girl named Holly, who explains that she's been hearing strange whispers that are coming from the nearby mountain. Holly realizes that the whispers are coming from some evil source and that it's causing the problem in the town.

The group decides to make their way to the mountain, and they realise that the whispers are coming from a group of Grey Wolves who have been converting the land into a wasteland. They find out that these wolves had been causing chaos in the town, scaring away all the other animals. It is then that Holly comes to the realization that these wolves are the ones who stole the Mocchi Cannon.

The group and Holly make their way back to the town to tell the townspeople what they had found out about the wolves. Everyone agrees that they must get the Mocchi Cannon back from the wolves in order to stop the destruction of their land. The townspeople gang up together with the travelers and set out to hunt down the Grey Wolves.

As they make their way up the mountain terrain, they encounter several of the wolves. Genki and his friends show their courage and skill in battle, and they manage to defeat every one of the wolves they come across, but the Grey Wolves just keep on coming. Eventually, they find themselves face to face with the wolves' leader, a huge and powerful creature that is determined to stop them. With the Grey Wolf leader standing in their way, it is up to the travelers to ensure that they get to the Mocchi Cannon, so they can save the town and bring peace back to the land.

Overall, "The Mocchi Cannon" is an exciting episode with plenty of action, as the group takes on a pack of vicious wolves in order to restore balance and order to the town. The episode also showcases each of the characters' unique strengths and abilities, highlighting the fact that they all have a significant role to play in the fight against evil.