The Xies are arrested for smashing up the house of one Squire Mao after they failed to find a tiger they shot that had fallen into the old man's garden.
As Sun Li has learnt combat from the same teacher as Luan Tingyu, the martial arts instructor of the manor, he wins the confidence of the Zhus.
When Liangshan attacks Dongping prefecture to seize its grain stock, Shi Jin infiltrates the city to stage an internal sabotage.
Gu Dasao is sent to sneak into the prison to instruct him to break out of jail and unleash havoc within the city when Song Jiang mounts an external attack.
Gu Dasao and her husband are put in charge of an inn which acts as a lookout for Liangshan after the 108 Stars of Destiny came together in what is called the Grand Assembly.
Gu participates in the campaigns against the Liao invaders and rebel forces in the Song territory following amnesty from Emperor Huizong for Liangshan.