Burnt

"The heat never bothered me anyway!"-Nicole

"Nothings going to stop me!"-Cecelia

Princess Nicole of France possesses magical powers that allow her to control and create fire and Lava, often using them to play with her younger sister, Princess Cecelia. After Nicole accidentally injures Cecelia with her magic, their parents, the King and Queen, take both siblings to a pack of wolves led by Grand Pawbie. He heals Cecelia but alters her memories so that she forgets about Nicole's magic. Grand Pawbie warns Nicole that she must learn to control her powers and that fear will be her greatest enemy. The King and Queen isolate both sisters within the castle, closing the castle gates to their subjects. To protect her sister from her increasingly unpredictable powers, Nicole ceases all contact with Cecelia, creating a rift between them. When the sisters are teenagers, their parents are lost in the cold winter.

Following her 18th birthday, Nicole is to be crowned queen of France. She is afraid that the kingdom's citizens might find out about her powers and fear her. The castle gates open to the public and visiting dignitaries for the first time in years. Among them are the scheming Duke of India and the dashing Prince |Ash of France, with whom Cecelia falls in love at first sight. Nicole's ball takes place without incident, but she remains distant from Cecelia. Cecelia and Ash develop a romantic connection during the ball festivities, and he impulsively proposes to her, but Nicole objects when they seek her blessing. Hurt and confused, Cecelia protests, begging Nicole to explain her fear and isolation. The emotional strain causes Nicole to accidentally unleash her powers before the court. Branded a monster by the Damian, Nicole flees to the South Cliff, where she finally acknowledges her powers, building a Fire palace to live a hermit life. In the process, her magic unintentionally engulfs France in an eternal Summer.

Cecelia ventures out to find Nicole and end the Summer, leaving Ben in command. She gets lost, collecting supplies at Wandering rivers shop. She meets an Fire wood man named John and his Horse, Samantha, convincing them to take her to the cliff. An attack by Cougars leads to John's boat being destroyed. On foot, they meet Orlando, a cheerful sandman brought to life unknowingly by Nicole, who offers to lead them to her. When Cecelia's horse returns to London without her, Ash sets out to find Cecelia and Nicole, accompanied by the Damian's minions, who have secret orders to kill Nicole.

Reaching the fire palace, Cecelia meets Nicole. When Cecelia reveals what has become of France, a horrified Nicole confesses she does not know how to undo her magic. Her fear causes her powers to manifest themselves once more, and she accidentally burns Cecelia heart, seriously injuring her. Nicole then creates a giant sand monster named heatwave, who chases Cecelia, John, and Orlando away. Realizing the effects of Nicole's spell on Celia, John takes her to the Coyote's, his adoptive family. Grand Pawbie reveals that Cecelia will Burn solid unless "an act of true love" reverses the spell

John races Cecelia back home so Ash can give her true love's kiss. Ash and his men reach Nicole's palace, defeating Heatwave and capturing Nicole. Cecelia is delivered to Ash, but rather than kissing her, Ash instead reveals that he has actually been plotting to seize the throne of France by eliminating both sisters. Ash locks Cecelia in a room to die and then manipulates the dignitaries into believing that Nicole killed her, but not before they were married. He orders the queen's execution, only to discover she has escaped her detention cell.

Orlando frees Cecelia, and they venture into the Heatwave outside to meet John, who Orlando has revealed is in love with her. Ash confronts Nicole outside, claiming that she killed Cecelia, causing Nicole to break down and abruptly stop the Heat. Cecelia spots Ash about to kill Nicole; she leaps in the way and Burn's solid, stopping Ash. Devastated, Nicole mourns over her sister, who unburn's, her heroism constituting "an act of kindness".

Realizing that kindness is the key to controlling her magic, Nicole ends the Summer