M*A*S*H (1972)

S07E25 The Party

BJ becomes inspired by discussions of a post-war reunion and decides to organize a current stateside gathering for the families of the 4077th. Despite the chaos of a bug-out caused by a Chinese advance, he can't shake his enthusiasm for the event. Meanwhile, Klinger is anxious that the celebration might expose his secret, as his mother remains unaware of his deployment in Korea.