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.

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.

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.

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?

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.

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.

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?

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...

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.....

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.

The Sheriff and his sinister scientist, Joseph (pretending to be the Nightwatchman), test a poison, blaming the ill effects on the pestilence.

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.