Mahabharat S21 E03 The attack on Yudhishthir

Duryodhan, Dushyasan and Shakuni fight against Yudhishthir. Dhrishtadyumna asks Arjun to help Yudhishthir, while he tackles Drona. Shakuni persuades Shalya to attack Yudhishthir from behind. Who will save Yudhishthir?