Here's a plot for "The Plumber" starring Jason Statham:

Genre: Action-Thriller

Plot:

Jack "The Plumber" Reynolds (Jason Statham) is a rugged, no-nonsense plumber with a mysterious past. Living in modern-day London, Jack has retired from his former life as a special forces operative. However, when his brother, a fellow veteran, is murdered, Jack is pulled back into the world of high-stakes espionage.

As Jack investigates his brother's death, he uncovers a sinister plot to manipulate the city's water supply, threatening the lives of millions. The trail leads him to a corrupt businessman, Victor Vex (Tom Hiddleston), who's using his wealth and influence to further his nefarious agenda.

With his plumbing skills and combat training, Jack navigates the city's underground infrastructure, taking down Vex's henchmen and unraveling the conspiracy. Along the way, he teams up with Sarah (Emily Blunt), a resourceful engineer who helps him stay one step ahead of the villains.

As the stakes escalate, Jack faces off against Vex in an intense, hand-to-hand combat showdown. With his skills and determination, Jack saves the city from catastrophe, earning his nickname "The Plumber" as a hero who unclogs more than just pipes.

Subplots:

1. Jack's complicated relationship with his estranged sister-in-law and niece, whom he must protect.
2. A rival plumber, Marcus (Idris Elba), who becomes an unlikely ally.
3. Jack's past as a special forces operative, revealed through flashbacks.

Action sequences:

1. High-speed chase through London's sewer system.
2. Fight in a crowded market.
3. Showdown at an abandoned water treatment plant.

Themes:

1. Redemption and second chances.
2. Family and loyalty.
3. The power of unconventional skills in unexpected situations.

This plot combines Jason Statham's signature action-hero style with a unique, relatable protagonist and a gripping storyline.