Three childhood friends, Danny, Hing, and Jim, were once inseparable martial arts prodigies trained by their wise kung fu master, Sifu Cheung. Known as the "Three Tigers," they shared a brotherly bond and extraordinary skills in their youth. However, life's twists and turns have led them to drift apart over the years; Danny is now a divorced father with a mediocre job, Hing suffers from a knee injury, and Jim has distanced himself from his past. Their once-strong connection to martial arts has diminished, and their mastery appears as mere echoes of their former glory. The unexpected death of their beloved master brings them back together, forcing the trio to reunite and confront unresolved issues from their past.

As they delve into the circumstances surrounding Sifu Cheung's mysterious demise, the formally washed-up fighters must overcome personal setbacks and rekindle their lost camaraderie. Amidst their investigation, they navigate both professional and personal challenges while rediscovering the values their master instilled in them. As the Three Tigers face adversaries old and new, they undergo a journey of redemption and self-discovery that reminds them of the true essence of martial arts — not only as a physical discipline but as a way of life.