|Air date||18 March 2013|
|Written by||Chris Chibnall|
|Directed by||Euros Lyn|
|Episode 1.2||Episode 1.4|
A flashback showed Mark Latimer waking in the middle of the night and going to Danny's room where he finds the boy wet and crying. He hugs and comforts his son before waking in his own bed, confronted by his son's loss.
In the morning, Beth Latimer looked at her belly in the bathroom, observing the place where her new child was growing. Mark interrupted her to use the bathroom, but instead texts his friend Nigel Carter, saying "You know where I was", using the noises of the bathroom to cover the sound of him typing the message.
Hardy told Ellie to give the morning briefing at the police station which she stumbles nervously through due to inexperience with that sort of authority. They then interrogate Mark who insisted that the night of Danny's disappearance he was out drinking and eating with his co-worker, Nige. He also explained his presence at Briar Cliffs by saying that he had fixed an old boiler there a few weeks earlier.
At the Latimer house, Pete Lawson asked Beth when Mark got home the night Danny died in order to corroborate Mark's story, which causes her to become suspicious of Pete.
Hardy and Miller went to the marina where they checked Mark's boat, The Old Boiler, and found blood stains in it. They also questioned Susan Wright, the woman who cleaned the cabin and held the keys, to whom Mark apparently borrowed the keys to fix the boiler. She denied that Latimer ever got the keys to the cabin from her and denies that there was ever a burst pipe in the first place. They also questioned Nige about where he and Mark were on the night of Danny's death, with Nige making up a story about them going out to get food and drinks from one of the local pubs, supposedly confirming Mark's story. However, Ellie talked with Nige's mother, who said that Nige was in with her all night, and Hardy accused Nige of being a terrible liar. When they then confronted Mark with the new evidence they had collected, Mark maintained that he was telling the truth about the cabin and refused to explain his whereabouts the night of Danny's death. He explained the bloodstains in the boat as being from a week or so previously, when he had taken Danny and Chloe out fishing and Danny had stepped on a fish hook. Frustrated with Mark's intransigence, Alec arrested him for obstructing an investigation.
Feeling trapped in her house, Beth went on a walk and tried to do some work at the paper but left quickly after her boss told her it was too soon for her to return. She went and sat on a bench by the cliffs and was approached by Steve Connelly, who told her that he had a message from Danny. Horrified, Beth ran off.
Karen and Olly Stevens approached Nige as he was close to the Latimer family, being Mark's apprentice. Nige quickly hid a crossbow in the back of his van when he saw them. The asked him about Mark and he provided some basic information but quickly excused himself, citing work as an excuse, and drove off.
Hardy interviewed Ellie's son, Tom Miller, with Joe Miller, his father, present. When questioned about how Danny got on with his father, Tom admitted that Danny had told him that Mark sometimes "got in bad moods" and had hit Danny "once, maybe twice".
Beth and Chloe are told of Mark's arrest by Pete. Beth reacted badly to the news, taking Chloe into the bathroom and telling her that they cannot trust Pete, "he's their spy", and that they must stick together. Chloe later texted someone about her father's predicament, telling them that she knew that they were with him and asking if they could help.
Hardy met with a friend and doctor who warned him about his health, telling him that he had to leave the case or he would die from his illness. Alec confessed that he hated Broadchurch and its people, but couldn't leave the case there because it was penance for his failure at Sandbrook.
Beth met with Paul Coates, who asked about the possibility of a memorial service for Danny, which could be as religious or as secular as Beth and her family wished. Later, she invited Steve over to her house, who passed on his message from Danny to not pursue the killer as it was someone close to her and therefore the discovery of the killer's identity would be too painful.
Becca Fisher came into the police station to tell the detectives that Mark was with her the night of Danny's death. When pushed further, she bluntly admitted that the point of the meeting was so that they could "have sex". When confronted with her confession, Mark admitted to the infidelity, saying that it was a mistake and the only time it has happened despite multiple opportunities he's been given.
Hardy returned to The Trader's Hotel, where he was staying staying, and saw Karen White. She angrily derided him for his failures in the Sandbrook case, telling him that "that family lacks closure" because of his failure. She told him that she was not going to let him do the same thing in Broadchurch.
As they lay in bed unable to sleep, Beth questioned Mark about where he was the night Danny died. When he put off telling her, she asked him if he killed Danny. Mark angrily denies the accusations and storms out of the house. He went down to the waterfront where he met with Becca. She said that what they did was a mistake but Mark says that it wasn't for him. "If it wasn't then it is now," she replied. As the two kiss, the camera pans away to reveal Beth watching them, stunned.
That night out on the sea near the beach where Danny was found, a fire consumes a boat.
Cast in order of apparance: