The episode begins with SpongeBob jellyfishing. He tells a jellyfish to stay off the road because it's dangerous. Some men on motorcycles drive past him, and SpongeBob holds on to one of the men's jackets, ripping an 'M' off of it. He looks at the jacket when he has to let go of it. He presumes it says "The ild Ones," but he soon notices the "W" in his hand and figures out that they are called "The Wild Ones." A fish pops from the ground after hearing this and tells him that "The Wild ones" are a group of vicious bikers who have destroyed cities. SpongeBob runs to tell Mr. Krabs about it, but he does not listen, so he tells Patrick. Then, Mr. Krabs takes the opportunity to welcome to bikers and raises his prices in order to get them to eat there after hearing SpongeBob described them as "ravenous," thinking that he will profit from their business.
After Patrick says that if they dressed up like bikers, they would be the big scary bikers, SpongeBob and Patrick decide to dress in biker attire and ride into town on a paddle-unicycle and a paddle-tricycle, respectively. After the bikers arrive at the Krusty Krab, it turns out that they are old folks.
The actual name of the biker gang is revealed to be 'The Mild Ones.' SpongeBob had the "M" upside-down. The biker that had the "M" ripped off of his jacket gets his "M" back from SpongeBob, and The Mild Ones ride away. Shortly after this, it is revealed that Squidward decided to join with them.
This is the last episode to use the APM track "Hilo March."
The German title for this episode is "Wilde Jungs," which translates to "Wild Boys."
The Greek title for this episode is "οι άγριοι," which translates to "The wilds."
The Arabic title for this episode is "الآحاد البرية" (alahad alb aria: El-ah-had-u Dor-rrea-do), which translates to "Wild Ones."
This episode reveals the name of the anchovy with blonde hair and wearing a blue dress and bow: Mable.
Throughout the episode, if one were to pause the screen image and look closely whenever the bikers pass the screen, the bikers are clearly shown to be seniors.
It is also a reference to the Warner Bros. film Born to Be Wild, which came out on March 31, 1995, exactly 12 years before this episode premiered in the USA.
SpongeBob and Patrick's attire were inspired by the 1953 film The Wild One.
The comparison of Diet Blood to regular blood is a parody of how in the real word Coca-Cola is compared to Diet Coke in terms of unhealthiness.
Errors
At the mid-beginning where the setting takes place in the Krusty Krab and at Squidward's front door, if one listens carefully, SpongeBob's crying and overreacting sound like he is laughing as displayed in the subtitles, yelling "Aha, ha, aha ha, aha ha!" and "Ah, ha, ha!"
The bike rack that Mr. Krabs shows to SpongeBob appears in front of the Krusty Krab. However, in other scenes, the bike rack is gone.
When SpongeBob and Patrick bump into each other the second time, SpongeBob's arm is missing a hand for a split second.
After SpongeBob and Patrick get shredded by a lawnmower, they are broken apart into pieces, while Patrick is shown to be several smaller stars. However, it is impossible that they could all form to make him again, as decagons do not tessellate.
Right before SpongeBob says, "we walk the walk," if paused at the right frame, one can see that for one frame the whites in SpongeBob's eyes have turned completely yellow and one of his legs have went missing.
Right before the Mild Ones drive around Squidward, when watching in slow motion, it can be seen that some of the men's jackets say "Mile Ones" instead of "Mild Ones."
Though this episode is not the official season finale in production order, Comcast/Xfinity mistakenly calls this season 4 episode 20.[citation needed]