Triumph in the Skies is about the daily lives of the staff, working under Solar Airways (a fictional airline based on Hong Kong's Cathay Pacific). It has been compared to the now-cancelled NBC series LAX. It sparked an interest in aviation when first aired amongst Hong Kong viewers, as well as an interest in a small doll named "Triangel" featured early on in the series.
Triumph in the Skies II takes place a few years after airline pilot captain Sam (Francis Ng) marries Zoe (Myolie Wu), a passenger service agent who was born with a severe heart condition. When Zoe dies, the introverted and mournful Sam resigns his position as pilot captain and spends a long vacation in England. There, he meets the heartbroken student pilot Holly (Fala Chen), who convinces him to return to Hong Kong to join Skylette Airlines.