The fourth installment of "The Brothers Sun" sets the stage for a dramatic encounter as Sleepy Chan agrees to meet under Charles's conditions, with the notable exception of excluding Sun Tai Tai from the square. The arranged meeting, however, descends into chaos when assassins from the Red Ribbon gang launch a surprise attack at the spa, resulting in the death of Sleepy Chan and Drowsy, while Charles suffers a concussion.
Episode 5 opens with Charles awakening in Alexis' home, having been rescued by her post-escape attempt from the spa. Despite Alexis' efforts to glean information about the incident and the red-ribboned assassins' motives, Charles remains tight-lipped. Alexis admits that the assassins have targeted her as well, revealing the depth of the threat they face.
Amidst the turmoil, Charles is desperate to reconnect with his family and insists on retrieving his phone from the Ka-Spa, suspecting the massacre was orchestrated rather than coincidental. Meanwhile, Mama Sun and Bloodboots embark on a mission to uncover information about the Red Ribbon gang, unaware that Mama Sun herself is their primary target, as revealed by Sleepy Chan's final words to Bruce.
The narrative takes a grim turn as Mama Sun's inquiry leads her into a trap set by the Red Ribbon gang, who seek her cooperation in identifying triad leaders. Offering Los Angeles in exchange for her family's safety, Mama Sun negotiates with The Boxers, the gang's moniker. Concurrently, Bruce and Xing, leveraging the mahjong club's intelligence network, extract crucial information from Hong, a contact of Mama Sun, about her whereabouts.
In a tragic turn of events, Bloodboots is executed while attempting to save Mama Sun, who remains silent under duress. Bruce orchestrates a daring rescue with the help of the mahjong club's elderly women, demonstrating his resourcefulness and determination to protect his family.
The episode further unravels as Alexis is revealed to have been monitoring Charles all along, employing GPS and surveillance technology to track his movements and communications. Upon returning home, Charles learns of Bloodboot's demise and the revelation that Mama Sun, known as Rolodex, possesses invaluable knowledge of the triad members' identities, making her a coveted asset for those seeking to dismantle the triad.
In a pivotal moment, Mama Sun entrusts Bruce with the names and locations of the triad members, arming him with leverage against The Boxers and any future threats. Episode 5 concludes with the Sun family taking drastic measures for their safety, with Mama Sun departing for Shanghai and the brothers retreating into hiding, underscored by the disclosure of a significant family secret.
This episode of "The Brothers Sun" masterfully intertwines suspense, betrayal, and strategic maneuvering within the criminal underworld, emphasizing the lengths to which individuals will go to protect their loved ones and their legacy. With each character's loyalties and motives under scrutiny, the series continues to captivate audiences with its intricate plot and dynamic character development.