Robin and his men battle against Isabella as she rounds up men to send to Prince John. Archer works with his sister and attempts to catch Robin and Gisborne.

In the final episode of the first series, Robin of Locksley mourns the loss of Marian. But in the final fairwells from the group a shocking discovery is made.....

A horrified Robin realises that his plan to capture the Sheriff's spy, Henry of Lewes, has failed because he has a traitor in his gang. Fearing for Marian's safety in the castle, Robin sets about rooting out the turncoat. His only clue is supplied by Marian: the spy's meeting place is located at the Trip To Jerusalem Inn, where the traitor outlaw sells his secrets to Gisborne.

Marian wakes up in Sherwood Forest on the first day of the rest of her life as an outlaw with Robin and his gang. Surprising everyone with a new energy and recklessness, however, she jeopardises the gang's mission to bring aid to Clun Village after it's ransacked by the Sheriff's men.

Robin is determined to get hold of the Great Pact of Nottingham, written proof of the Sheriff's treason. So when lovelorn Knight John of York and his chest of silver pass by Robin and the gang, and the Knight begs the outlaws to take pity on him and save his girl, Robin formulates a plan.

Prince John causes mischief when he shows up in Nottingham. Gisborne and the Sheriff are assigned on a royal mission.

The news of King Richard's return to England reaches Robin and the gang - and it means one thing; Marian's marriage to Gisborne is looming closer. Marian attempts to steal Gisborne's money and distribute it to the villagers, Robin tries to find out more about Gisborne's crimes. But then tragedy strikes for the Nightwatchman at Locksley Manor...

A mortally wounded, one-legged messenger from King Richard flees Locksley Manor pursued by Gisborne's men and ends up in the arms of Robin. In his dying breath, he tells Robin that the King needs him to return to fight in the Holy Land, and utters the word "Lardner". The Sheriff is furious that the messenger got away, especially now that he and Gisborne are also on the hunt for Lardner, having received a prediction from a fortune-telling Fool that the "ring of Lardner" spells trouble.

The gang are shocked when Robin announces that Gisbourne is joining their fight against Isabella, but can their uneasy truce survive? Robin and Gisbourne then travel to York to save their half-brother Archer from execution, and find that he has made a formidable enemy in the Sheriff of York.

The King's guard Legrand arrives with a vital mission for Robin. Robin joins the quest to unravel the coded clues leading to the mysterious Thesaurus Patriae.

Lambert, a friend of Sir Guy of Gisborne and castle scientist, realises that lives could be at risk if his latest invention were to fall into the Sheriffs hands. When Lambert won't make more of the invention, an "explosive" black powder, he is put into the dungeons by the furious Sheriff. Much volunteers to get himself arrested so he can help Lambert from within, but will he get more then he has bargained for?

The Sheriff's Black Knights gather at the castle to attend a feast and declare their allegiance to Prince John by signing the Great Pact of Nottingham. With the outlaws disguised as entertainers, Robin infiltrates the castle to join forces with the only man who can stop them: former Sheriff Edward's old ally and Black Knight, the Sheriff of Winchester. Winchester's territory is key to the Sheriff's Shah Mat plan that will apprehend a homecoming King Richard at the southern ports.

Robin, Earl of Locksley, returns home after five years fighting the Crusades to discover his England is not the same England he once knew. He must make a choice to compromise his values of honour and justice and adapt to the new order or make a stand to save four innocent lives.

When a group of boys accidentally stumbles on Gisborne's weapons testing site, all but one is taken prisoner. When the alarm's raised, Robin hatches a plan. But with Gisborne armed to the hilt in an indestructible suit of armour, a rescue attempt is more difficult than it might first appear. Robin must think fast if he's to save a boy's life and stop a vital part of the Sheriff's war machine...

The Sheriff turns the heat up on Robin and his gang by forcing the Abbot to accuse them of stealing from the church. Tuck's attempt to clear Robin's name ends with him being captured and tied to the rack. Will the gang free Tuck in time, while escaping execution themselves?

The Sheriff's bailiff is murdered and rumours point to Robin being the culprit. However, he believes it to be a do-gooder known as the night watchman. Robin and the Sheriff form an unholy alliance to find the true identity of the murderer.

Robin and the gang have been busy constructing their ingenious new camp, but, when Knighton Hall is razed and Marian and Edward are taken to the castle under house arrest, it's clear that the rules have changed.

Little John and his band of outlaws are proving a difficult problem to overcome for Robin and his men. The Sherrif retaliates against the Robin's defection by threatening the people of Locksley. Robin is given a choice: Surrender or allow the people of Locksley to suffer.

Gisborne returns with Prince John's Elite Guards and a secret new weapon. Little John finds himself separated from the others and ends up in a Gladiator circus. Robin finds himself helping a mysterious woman.

Returning from a visit to teach the Sheriff's bent pawnbroker a lesson, Robin and his gang encounter another gang of outlaws - just in time to save them from a beating. When their leader turns out to be Alan-A-Dale's brother, Tom, Robin must decide if he should allow the other outlaws to join his gang.

The Outlaws return from the Holy Land and Robin breaks up the gang- all he cares about is getting revenge on Gisborne. However, a traveling monk named Tuck makes him realize exactly how much the country needs him.

Ruthless Rufus is in town, intent on revenge. When he kidnaps Allan and Kate, Robin retaliates by snatching his son. Robin and the gang face a race against time as they try to find Rufus' hiding place. Will they succeed, or is this the end of the road for Allan and Kate?

Roy is captured by the Sheriff and he is given a choice - kill Robin or watch his mother hang. The Outlaws find a baby in the forest and try to find the parents. Marian defies the Sheriff and he plots her punishment.

Robin must be patient when the Nottingham Fair comes to town bringing with it the temptation of the silver arrow competition. Before he can compete Robin must first deal with the Sheriff's latest plan of using Saracen slaves as labour in his deadly mine. Can Robin, with the help of the Nightwatchman, defeat Nottingham's plan in time for the competition?