Happy Valley: Six theories ahead of the penultimate episode trends now
Following Tommy Lee Royce's wild escape from the courtroom, Ryan's ever growing relationship with his criminal father and Faisal's murderous turn, Happy Valley fans have been theorising about how the epic drama will conclude.
As the BBC series reaches its penultimate episode, viewers will tune in to watch Tommy on the run, which writer Sally Wainwright has revealed will mean one final showdown between the murderer and resident police hero Catherine.
While some theories have been running throughout the series, others have been added into the mix after episode four aired, as fans query the reason for Alison Garrs' return and whether Rob Hepworth will be framed for his wife's murder.
Drawing to a close: Happy Valley viewers have speculated what will happen in the final two episodes as they share their wild theories
This week viewers have surmised that many of characters have murder in mind, including Ryan who they believe is getting close to his dad in order to avenge his mother's death.
Sunday's episode will pick up where it left off and viewers are all wondering the same thing - who will make it out alive?
Here we take a look at this week's top six theories:
1. Catherine will die and won't make her retirement
It hasn't gone unnoticed by viewers that Sargent Cawood's impending retirement has been mentioned more than once throughout earlier episodes.
Her retirement do has also been noted more than once, as well as the pot of money that has been raised for her present, currently standing at more than £2,000.
And they are worried the repeated mention of her happy ending means that she definitely won't be getting the well earned rest she deserves.
On no! It hasn't gone unnoticed by viewers that Sargent Cawood's impending retirement has been mentioned more than once throughout earlier episodes
With convicted killer Tommy on the loose after he was arrested by Catherine, there is no chance he will be letting their very chequered past lie.
Show bosses have already teased the showdown of all showdowns as the series comes to a conclusion, and there is no doubt it will involve Tommy and Catherine.
Viewers are just hopeful that Catherine will be able to walk away from the fight unscathed.
'If bad things happen to Catherine at the end of this series I'm not sure I will be able to forgive Sally Wainwright and co.' tweeted author JoJo Moyes.
'#Happyvalley Calling it now.. That retirement collection pot will be used at her funeral. Her and Tommy both getting killed off in the last episode,' the viewer decided.
2. Alison Garrs will kill Tommy
Alison has popped up in series 3 on a couple of occasions following her release from prison, following the manslaughter of her son Daryl.
The crime of passion took place when she learned that her son was responsible for the death of Tommy Lee Royce's mother and several other local sex workers.
Alison fatally shot her son in the head over fears he would not be able to survive prison once Catherine learned of his crimes.
Murder on her mind? Alison has popped up in series 3 on a couple of occasions following her release from prison, following the manslaughter of her son Daryl
However fans have now speculated that her return in the new series must be significant, with some suggesting she will be the one to take Tommy's life.
One person has speculated: 'Perhaps Tommy Lee Royce comes after Catherine and Catherine fights back, but is overcome.
'Alison saves the day by shooting Tommy Lee Royce, as she did her son in series 2.'
Another viewer shared: 'Just leaving a tweet here to say I think Alison will have a big part in this story.
3. Ryan is plotting to kill Tommy
Viewers have watched in horror has Ryan's relationship with his villanous father blossoms thanks to prison visits aided by his aunt Clare's boyfriend Neil.
Episode four even saw Ryan bunk off school to go and watch Tommy stand trial for the murder of Gary Gogoski, who was discovered during episode one.
Fans have guessed that now he is free from his prison shackles, Tommy will come for Ryan and take him away,
