In 'Arthamainda Arun Kumar', On his first day as assistant manager, Arun is determined to lead his team to success. But he gets overwhelmed by office politics and his nervousness. His first trial by fire is the quirky new intern Sonia. Arun gains control of the team and his leadership qualities are tested by manipulative colleagues and unexpected challenges that Shalini has manufactured. The episode ends with the arrival of an old friend in the form of a new enemy!