Heroes Next Door S01 E05 We’re Family, Aren’t We?

"Heroes aren’t born—sometimes, they live next door"

Choi Kang learns of the mastermind behind Kim In-seop's kidnapping and, with Kwak Byeong-nam's help, rescues Kim In-seop and takes him to safety. Kwak Byeong-nam, Jeong Nam-yeon, Lee Yong-hee, and Park Jeong-hwan gather there.