In 1945, Shen Fang leads a surveillance operation in Nanjing and intervenes to save Communist agent Chen Weikui from a trap.

After assassinating Kato Tsuyoshi, Shen Lin uncovers a trap set by Tanaka Kenji and cleverly turns the tables to protect himself.

Shen Fang aids a prison break attempt from the inside, but Shen Lin's sharp instincts intercept the plan, leading to a tragic failure.

Shen Fang kills Wu Yuanpu during a desperate escape attempt, unknowingly eliminating a deep-cover mole planted by his own brother.

Shen Fang receives a military promotion upon release but coldly refuses to reconcile with Shen Lin due to deep-seated family grievances.

A family celebration turns chaotic when Shen Fang openly defies his father over an arranged marriage and past injustices.

Shen Fang reconnects with his childhood sweetheart at a popular play, but the reunion is cut short by a shocking assassination in the theater.

Shen Lin's psychological warfare on a prisoner bears fruit, but Shen Fang interrupts with urgent orders to execute a prisoner exchange.

Attempting to protect a contact from a trap, Shen Fang is forced to ambush his own ally to keep him safe before being captured himself.

A wounded comrade urges Shen Fang to remain deep undercover and uncover the traitor, forcing him to accept his arranged marriage as cover.

As Shen Lin publicly rebukes a rival, he privately instructs his fiancée to intensify her surveillance of Shen Fang after their wedding.

Shen Fang stages a violent brawl with American soldiers to feign mental instability, a cover he uses to secure a loan from Luo Lizhong.

A sniper attack disrupts the wedding, leading Shen Lin to suspect that his internal rivals are silencing loose ends.

Shen Fang disables a listening device, lures his shadower into a trap, and drags him to headquarters for interrogation.

Shen Fang approaches an old flame to pass intelligence during a ball, causing a rift with his wife and attracting unwanted attention.

While Tanaka digs into past cold cases, Shen Fang exploits a corrupt official's greed to gain access to a top-secret strategic plan.

During a hunting trip, Shen Fang attempts to steal confidential documents but is thwarted by the unexpected arrival of a staff officer.

Shen Fang repairs family ties and stages a car accident plan to cover his escape, but is forced to abandon the evacuation.

An ambush descends into chaos, leaving Shen Fang's evacuation plan in ruins and a key comrade captured by the Bureau.

Tanaka forms a dangerous alliance with Shen Lin's rival, while Shen Fang investigates reports of a dead agent who has seemingly resurfaced.

After Tanaka's schemes lead to his death, Shen Lin is ordered to test his brother's loyalty at a suspected Communist photo studio.

Realizing he is the target of the investigation, Shen Fang refuses to evacuate, choosing to stay behind to cover his comrades' retreat.

Shen Fang successfully smuggles intelligence out during a banquet, convincing Shen Lin to finally end the intrusive surveillance.

Disturbed by brutal torture methods at the Bureau, Shen Fang rushes to a theater to warn Liu Ruyan of an impending raid on dissidents.

Shen Lin's arrest of a student leader sparks public outrage, while a chance encounter in prison reveals a connection to special operations.

The arrest of a staff officer reveals the existence of a secret society, leading to a tense armed standoff between the Shen brothers.

Shen Fang secures a secret code during an interrogation, but a rival's brutal interference escalates the situation into violence.

A key witness is silenced in a staged accident, leaving Shen Fang in shock and Shen Lin determined to find the truth behind the cover-up.

Shen Fang rescues Liu Ruyan from an assault and blackmails her attacker to uncover the secrets of the clandestine Jinling Society.

Shen Fang orchestrates his brother's arrest on corruption charges to demonstrate the extent of the rot surrounding them.

Shen Lin urges his brother to move home for safety while secretly cracking a bloody code left by a deceased officer.

Shen Fang defends an operating room from assassins while a doctor fights to save Shen Lin's life after a critical injury.

By handing over a secret ledger, Shen Fang cements Luo Lizhong's trust, paving the way to access the devastating Lingzhi Project.

As the war turns, Shen Fang exploits a distraction to copy a key to the Bureau's confidential files regarding the new project.

Discovering the destructive scope of the Lingzhi Project, Shen Fang races to identify the sleeper agents infiltrating the Liberated Zone.

Shen Fang exposes the regime's market manipulation, triggering public unrest to cover his moves against the cabal.

The brothers unite to take down Luo Lizhong in a fierce gunfight, but the victory leaves Shen Lin critically injured.

Shen Fang intervenes to save an underground printing press while the Bureau plots to assassinate student leaders.

Under investigation, Shen Fang cleverly concocts a cover story involving a fake informant that humiliates his accuser and clears his name.

Betrayals mount as it is revealed that both Shen Fang and his handler are merely pawns in a larger, cynical purge plan.

To protect the Shen brothers, a double agent sacrifices himself, staging a murder-suicide to cover their tracks.

Shen Bainian sacrifices his life in a final act of protest against the corrupt regime, leaving a devastating impact on his sons.

Shen Fang storms an interrogation room to rescue Manli from Lü Buqing's brutal torture before she can be broken.

As Lü Buqing blackmails Yao Bijun into service, Shen Fang tries to make his brother see the regime's inevitable collapse.

Cornered by threats against her father's life, Yao Bijun reluctantly agrees to spy on Shen Fang for the Bureau.

Shen Lin risks everything to send a coded warning to Shen Fang as the net closes in on the underground network.

A rescue mission ends in tragedy at a teahouse, though Shen Fang manages to arrive in time to save one key operative from the raid.

Shen Fang pleads for his brother's help, but a shocking arrival at the family home complicates Shen Lin's decision.

The Shen brothers join forces in a final, explosive gunfight against their rivals, taking a hostage to secure their escape from the city.