So I thought I would treat you all to TWO chapters! - so it was brought to my attention that this had massively reformatted. I have amended it and resubmitted it!

Several hours later Sam realised that he didn't actually have his shift schedule. He tried to call Oliver, Frank, Noelle and Jerry, but couldn't get through to anyone. He assumed that Oliver and Jerry had told everyone his plans for the weekend, he bundled Katie into the car and set off for 15 district.
Once he got there, he got Katie out of the car and took her hand
"This is where I work. Now I need you to listen to me. There are some not very nice people here and I need you to hold my hand at all times. Do you understand?"
Katie nodded.
"Sam took her through the front door and immediately ran into Noelle.
"What are you doing here?"
"Well, I didn't have my schedule, and no one answered their phone, so I had to come in to check it."
"Oh. Well this must be your niece?" Noelle asked, crouching down to say hello. Katie hid behind Sam's legs.
"She can be a little shy"
Noelle looked up at Sam and stood back up.
"She looks like you, you know."
Noelle buzzed Sam through the door.
He led Katie through the station to where the schedules were and he saw her looking around as he checked the schedule. He saw that he was back in the following day on a morning shift. He heard Oliver talking to someone. He turned to see Oliver talking to Luke Callaghan.
"What are you doing here?" Sam and Oliver asked at the same time.
"I came to check the schedule". Sam stated looking at Callaghan.
"Detective Callaghan is here investigating a mur…" he broke off when he realised Sam was with Katy and corrected himself "investigating someone who got really, really hurt"
"I didn't realise you had a kid Sam?" Luke questioned.
"I don't. This is my niece. Why you?"
"It falls in line with the task force I'm working on. Don't worry I'm not here for long. McNally here?"
Before either Oliver or Sam could respond, a voice they knew shouted:
"OLIVER! SAM! MAN IM GLAD TO SEE YOU GUYS! I NEED YOUR HELP!"
They looked up to see Noelle buzz Dylan through.
"What's up?" Sam asked as Dylan got close to them.
"I'm supposed to pick Andy and Gail up, but my crappy car broke down."
"So Andy isn't here?"
"She's in New York with Peck" Oliver answered, looking at Dylan
"Who are you?" Dylan asked
"Detective Douchebag" Sam said with a broad grin, popping both of his dimples.
Oliver snorted as realisation dawned on Dylan's face.
"Oh, wait, the ex-fiancé who cheated?" he asked. Luke scowled at Dylan.
"The one and only" Sam told him.
"Perfect. Still doesn't help me pick the girls up at the airport later. Have they talked to either of you today?"
"Andy told me they missed their flight this morning but hasn't confirmed what time they're due to land yet."
"She said that to me, and the new flight would land at 7pm"
"I'm on shift till then. Sorry."
"I would help, but Andy would probably shoot me on sight, tap dance on my corpse and Peck would help her cover it up!"
Three sets of eyes swung to Callaghan, while Sam also covered Katie's ears.
"That's dark man. You need therapy" Dylan told him.
Sam removed his hands from Katie's ears and checked his watch. He did not have time to get Katie back to his place to then drive across town, passing 15 to get to the airport.
"Let me see if I can get my sister to pick Katie up from here."