Amorpho can turn into anyone...but he's chosen to be Danny Fenton!
Danny turns evil under the control of Freakshow - the ringmaster of a ghostly circus.
When Vlad Masters' ghost portal explodes, he schemes to replace it by stealing Jack Fenton's portal. As a distraction, Vlad anonymously offers a million dollar bounty to eliminate Danny Phantom. As ghost hunters from around the world gather in Amity Park to hunt the ghost kid, Danny sacrifices himself to Jack - both to win the prize money for Dad and to bolster Jack's inept reputation, which embarrasses Danny. However, when Maddie's life is put in jeopardy, Jack needs no help from Danny to save the day on his own.
Danny and Valerie Gray are forced to become "parents" to a sack of flour for a one-week school assignment. At the same time Skulker, ghost hunter extraordinaire, decides to pit Valerie and Danny Phantom against each other in a contest - with the winner earning the privilege of becoming his prey.
Maddie relishes the chance to bond with emotionally distant Danny at a weekend mother/son science seminar. However, the seminar is a ruse orchestrated by Vlad Masters - a.k.a. Vlad Plasmus, Danny's arch enemy! Vlad's plan is to convince Maddie and Danny to live with him while simultaneously destroying Jack with a massive ghost attack. When Vlad short-circuits Danny's powers, Danny gets to witness Maddie's impressive ghost fighting prowess. Meanwhile, a reluctant Jazz is pressed into ghost-fighting duty with Jack - and likes it, in spite of herself!
When Paulina witnesses Danny's ghost transformation, he fears the exposure. Imagine his surprise when Paulina swears to keep his secret - then becomes his girlfriend! Life is great for Danny, until he finds out that Paulina has actually been overshadowed by Johnny 13's girlfriend, Kitty, in her plot to make Johnny jealous. Danny reluctantly plays along to protect his own identity, but, when Kitty's welcome wears thin, Danny pleads with Johnny 13 to take her back.
The cat is out of the bag - Amity Park learns about the ghost kid and Danny becomes Public Enemy #1.
Jazz falls for a hunky boy ghost - Johnny 13 - who has the power to cast his shadow out and create bad luck for everyone who crosses him, especially the girls he's dating. Danny finds himself in the uncomfortable position of behaving like an overprotective parent, much to Jack and Maddie's pride and Jazz's fury. Danny has to beat Johnny back into the ghost zone before Jazz fully accepts Johnny's offer to go steady - or else!
Johnny 13 has won Jazz's heart...too bad he's a bad news ghost!
Figuring out the best way to be both a high school Freshman and a brand new super hero has always been a bit of a balancing act for Danny - but it's gotten even more difficult, with both Lancer and his parents putting pressure on him to ace a make up test. Of course, this is the same time that Technus - ghost master of technology - has escaped into Danny's online game! And if they don't stop him, he'll escape into the internet and take over every computer in the world!
Danny and Sam find their platonic friendship turned forcibly romantic through the musical powers of Ember, a hard rocking girl ghost who feeds off the idol worship of teens. With her massive, free concert scheduled only a few days away - a concert that will be broadcast worldwide and give her ultimate power - Sam has to get the now completely and utterly love-addled Danny to focus on fighting ghosts - even if it means breaking his heart.
When ghosts destroy a student's life and popularity in school, she dedicates her life to hunting ghosts. Now Danny has to deal with a threat only a few lockers down the hall. and worse? Danny's best friend, Tucker, has a crush on her.
When the gang goes camping, people start disappearing mysteriously.
Danny thinks he's going to cause his parents to split up when he knocks Jack's anniversary gift into the ghost zone. Desperate to retrieve it, he dives into this ghostly dimension where he runs afoul of Walker: The Ghost Warden of a Ghost Jail. Worse, Danny is thrown into prison. with every ghost he's ever caught.
Danny must save his dad from his rival, Vlad Plasmius.
When Desiree - a ghost that can grant wishes - gives Tucker (Danny's best friend) ghost powers, Danny finds himself dealing with his friend's jealousy in the worst way possible: by having to fight him.