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.

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.

The Sheriff, Gisborne and Marian are in the Holy Land. It is up to Robin to save the King's life as the battle for England is on.

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.....

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.

The gang are captured by the Sheriff's mercenaries. Allan a Dale realises that the Sheriff and Gisborne intend to kill the King.

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.

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.

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

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.

Prince John's army is summoned to raze Nottingham to the ground at sunset. Gisborne risks his life standing by Marian as they fight to save the townsfolk from oblivion.

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.

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.

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.

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...

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

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.

When Robin and his gang encounter Flaxton, a farmer, and his son while on their way to Nottingham it doesn't take them long to discover all is not as it seems. When they discover that Flaxton is actually a tax inspector, on his way to count the mountain of tax silver in Nottingham Castle a plan is hatched to allow Robin access to the castle vault.

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?

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?

As King Richard's birthday comes around Robin is shocked to discover a terrible secret about Sir Guy of Gisborne. Meanwhile Djaq has been captured and is being held by the Sheriff, with Robin distracted by Gisbourne’s secret can the gang complete a successful rescue without him?

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.