In the midst of the chaos, Oscar is able to get up on a desk and remove the ceiling panel, so that he could launch himself into the ceiling.
The scene that Angela Kinsey and Oscar Nunez recreated was from the excellent thirteenth installment of Season 5, entitled “Stress Relief.”
In the hilarious episode, Dwight Schrute put his his fellow employees through a problematic “fire drill” that subsequently strikes panic among the staff.
Upon seeing this, Angela tried to get Oscar to save her cat, Bandit.