Mayor Bulloney and The Masked Bull make a plan to get rid of Moo.
A mysterious bull arrives in town who has all the women drawn to him and Moo and Dakota are suspicious of him, especially after Miss Lily is robbed.
During an attack on the stagecoach Puma sees that The Masked Bull is actually Sheriff Terrorbull. In order to save his identity the sheriff must break his brother Horribull out of jail.
A new teacher has the children help The Masked Bull commit crime through her strange assignments.
Cowlorado volunteers for Miss Lily's cattle drive, only to find out his cattle are bad tempered sheep.
Cowtown dries up and only Mayor Bulloney has water. When Cody finds the real reason for this it is up to him to bring water back everyone.
When Cowlamity Kate's doesn't recieve a letter from her father who has been exploring the Mesa for 7 years, Mayor Bulloney claims he will be taking all her property since her father had no will. But when a page of one of her father's old letters shows up, stating Kate and her husband will inherit the ranch and his gold, Kate plans to marry Dakota.
When Cody, Carly and Jake find a treasure map in Cowlamity Kate's attic, they decide to follow it to find Tom Duggery's lost silver.
In an attempt to get his own deputy star, Cowlorado decides to catch Five Card Cud all by himself.
Moo and Terrorbull get in a mess when they both try to capture the Gila Gang.
Cody and Taywa learn about responsibility.
No one cares that it is Moo's 10th anniversary as marshal. Then, Moo recieves a telegram from his hometown of Miller Glen, where the sheriff wants Moo to take over. Now Moo must decide between Miller Glen and Cowtown.