德广押的老板，高义文（夏雨 饰）深受街坊四邻的尊敬，作为当铺老板的他乐于助人，天生一副热心肠，而他最为自豪的是膝下的三个儿女。大儿子高威庭（麦长青 饰）作为视光师已成家立业，和妻子温婉娴（胡定欣 饰）相亲相爱；二女儿高如珠（钟嘉欣 饰）作为警界新人继承了义文的热心肠，爱好打抱不平，和林发（马浚伟 饰）整日斗气；小女儿高如宝（乐瞳 饰）马上要从加拿大学成归来，主修会计的她可谓前途无量。子女都颇争气的义文感到非常幸福。但这时，危机也接踵而来。任职于眼镜店的大儿子遇到了工作危机，可能会失业；和如珠一直很要好的男友有了外人，感情遇到了危机；小女儿如宝原来没有修会计……但有烦心事不见得是坏事，说不定是转机，当旺爸爸的家庭故事就此拉开……

Pawnshop owner Ko Yee-Man often upholds the 'emergency assistance' spirit – there will always be solutions to everything in life, with exception of his three beloved children: Oldest son Ko Wai-Ting and his wife Wan Yun-Han are a very loving couple, but their careers trip them up. Second daughter Ko Yue-Chu almost became the third party in a relationship but was fortunate enough that her bickering friend Lam Fat was there to pull her back up on her feet. As for youngest daughter Ko Yue-Bo, she is a fast and dodgy person. She only knows how to chat day and night, and has no integrity.

Mạch Trường Thanh, Chung Gia Hân và Lạc Đồng sẽ vào vai 3 người con của Hạ Vũ. Hồ Định Hân đóng vai vợ của Mạch Trường Thanh và là chị dâu của Chung Gia Hân. Tiêu Chính Nam có thể nảy sinh quan hệ tình tay ba với đôi vợi chồng Mã Tuấn Vỹ và Chung Gia Hân