Dholakpur experiences dangerous unusual weather which as per Dhuni Baba is not caused by natural factors. Bheem and friends witness a spaceship crash in the forest and rush to help. As Bheem rescues the pilot, he sustains a burn mark while his friends get strange rings. With Dhuni Baba’s help, the pilot is revealed to be the prince of the hidden kingdom of Mrittika. Prince Jhirjhir tells them that trouble is brewing in Mrittika thanks to the villainous druid KaalBrahm. Strange parasites called Kalmaraks attack Dholakpur and take control of the villagers and the palace guards. Bheem’s friends discover that the rings give them special powers which they use to fight the Kalmaraks. Bheem uses a bio-weapon to disintegrate the Kalmaraks but shockingly they find out that KaalBrahm sent them and that he has the backing of the ferocious Andhakaarmay. Together he and KaalBrahm aim to fulfil a dark prophecy. The parasites hurtle one last attack which creates deathly sinkholes in Dholakpur. To make matters worse, Jhirjhir creates a portal which pulls in his friends and they vanish leaving Bheem devastated.

Episode opens on Bheem out of his happy daydream- he sees Dholakpur in trouble and his friends gone. In Dhuni Baba’s cave, Jhirjhir tells Bheem that Bheem’s friends are in Mrittika as Nadirs, magical warriors. Bheem and Jhirjhir hasten to Mrittika. Bheem finds out Jhirjhir is vital to the prophecy’s fulfilment. KaalBrahm and Andhakaarmay create Gammaghors and weaken the Mayakavach. Andhakaarmay refurbishes the Kalmaraks and they mind-numb the people of Mrittika. Bheem’s friends train to become Nadirs by pairing with Siddhs, magical beings born from the magic core. Bheem’s friends have no memory of Bheem. Kalmaraks and Gammaghors take control of Mrittika. Andhakaarmay searches Mrittika for the Grahanchakra. The castle is attacked. KaalBrahm uses his alchemical magic to trick Bheem and captures Jhirjhir. Andhakaarmay extracts Jhirjhir’s essence and draws out the Grahanchakra. Using it, Andhakaarmay creates a dark sun that darkens the world, and the spirits of all living. KaalBrahm cunningly implies Bheem has helped them which turns Bheem into “public enemy number 1” in the eyes of everyone, even his friends.

Mrittika is overtaken by Andhakaarmay using the Grahanchakra and KaalBrahm is the new “king of the castle”. Bheem is ostracized by everyone. His friends as the Nadir, try to stem the harsh effects of Andhakarmay’s dark sun but ignore Bheem. Bheem finds an accomplice in Battu, a talking rock being. As the curse ring weakens Bheem progressively, the Emperor directs him to Vaha, a secret island. Despite KaalBrahm’s sly efforts, Bheem reaches Vaha where an old seer, Sinai breaks the curse ring. Sinai reveals that the dark prophecy mentions a “Suryabeej”, someone who can reverse the prophecy. Bheem returns to Mrittika with Battu to find that Andhakarmay has created a chakravyuh and his friends are now his foes. Bheem uses his quick wits, determination and a little help from Battu to reach Andhakaarmay at the castle. Furious, Andhakarmay calls in the “Tamas” of all the dark suns he created and viciously attacks Bheem. Thanks to Bheem’s worthiness, he emerges as Suryabeej breaking the spell on his friends and together they vanquish Andhakaramay.