Karna goes against the Pandavas - S19.E8

Kunti apologises to Karna and requests him to take the Pandavas' side, but he tells her that he will not be disloyal to Duryodhan. Karna promises Kunti that he will not kill any of her sons other than Arjun. On learning about Duryodhan's decision, Yudhishthir instructs Arjun and Bheem to prepare their army.