Cal watched in horror as Ethan started to walk along the road - but he wasn't looking where he was going. He shouted at Ethan, screamed at him to get out of the road. He was walking so slowly and Cal could only hope Ethan would hear him. Cal's legs were as heavy as lead and he couldn't move, no matter how hard he tried.

A car was coming and Cal was frozen as it hit Ethan, sending him to the floor. Unconscious. He immediately felt tears gather in his eyes at what he just witnessed. He watched his brother to get run over by a car, and they had just had an argument. An argument that could be the last conversation they ever have together.

'You've already lost me,' Ethan said... but maybe Cal has now. Maybe he has forever.

He regained the power to move and ran to his little brother's side. His head was bleeding and his leg was twisted at an unnatural angle. He looked at his brother's shoulder and immediately remembered last night. He pushed Ethan... he was the one who damaged his shoulder. And Ethan lied about it, he never said. He was just as bad as Cal - lying about something.

Although, it wasn't as bad as what Cal was lying about.

He shook Ethan's shoulders - though not too much in case of a back injury - and tapped on his face. Ethan was unresponsive. Everything Ethan said to him still played on his mind, but he pushed it aside. He'd worry about petty words later; his brother's life could be in danger and that was more important. "Please, Ethan." Cal begged through tears, "please just wake up... wake up and shout at me again. Please. Look, I'll move out. I promise I'll move out and I'll quit at Holby. I'll go somewhere far away, I promise. Just please wake up. You won't ever have to see me again - we don't ever have to have contact. Please, please wake up, Ethan." He sobbed, laying his head on Ethan's chest - not caring that he should be stabilising his neck. He didn't know how serious Ethan's condition was, and he didn't check. He didn't know how - not now. Not when this was his brother. The last conversation they had was an argument, and all Cal wanted to do was apoligise.

He didn't know how much longer later, but he felt himself being pulled away from Ethan. He tried to kick them away, but he was in such an awkward position he couldn't succeed. He looked around and saw it was Iain. "No, Iain. I have to be with him!"

"Let us get him in the ambulance first, Cal." Iain said, before getting back to doing his job. Cal was going to step forward, but as he watched the paramedics working on Ethan, he couldn't. They were doing what he should have done, but he was so selfish. He was thinking about himself instead of helping Ethan. He was always so selfish. Cal could only watch as they stabilised his neck and back and put him in the ambulance. But he was still unconscious and unresponsive.

"Charlie, oh Charlie." Cal said as he approached the nurse ahead of Ethan's trolley. "I want you to help him, please."

"I didn't think you'd ever speak to me again, Cal." Charlie joked, but then his tone turned serious. "Help who?" Cal turned his head as a trolley was pushed through the ED entrance. He watched Charlie step forward to see who it was, and heard a small and quiet gasp from the nurse. "Okay," Charlie agreed, coming up by Zoe and Lily who had also come to help Ethan. "Okay."

"Ethan was knocked down by a car going at approximately 25 mph. Driver is on her way. Neck and back stablisied at scene, and he has a head injury. Suspected broken right tib and fib," Iain reeled off as the continued the seemingly long journey to Resus. "He has a GCS of 7, SATs of 96%, BP 120/80, resps of 18, and tachycardic at 100."

Zoe nodded. "Bay 3, please," she instructed.

"On my count. 3. 2. 1 -" the team transferred a still unconscious Ethan to the Bay 3 bed and Cal stepped forward, wanting desperately to help. He felt Iain pat his arm as he walked past.

"Cal, you can't help. Not family," Charlie said. "Go to the staffroom."

"Please... I have to stay here. I need to know if he's okay."

He watched Zoe hesitate. "Step back. If you get in the way you go, alright?" Cal nodded and stepped back - happy to at least be in the room. "What happened to his shoulder? Iain didn't mention that." Cal stepped forward.

"Oh, that didn't happen in the accident. It happened last night... he got pushed into a wall and hit it."

"Pushed?" she said in shock, "by who?"

Cal hung his head, "by me." Zoe didn't say anything else on the matter.

"What is it with you boys and cars, eh?" she weakly joked. Cal gave a light smile.

"Dr Hanna," Lily addressed, "we're going to need an x-ray for this shoulder. It's not very good. Why didn't he say anything - it must have been hurting so much."

They all glanced towards Cal, expecting an answer from him. All Cal gave was, "he didn't even tell me I did it. I only just remembered... I was drunk at the time." His voice was a mere whisper as he continued to look at Ethan.

Cal rubbed a hand over his face and through his hair, surprised to find tears flowing from his eyes. Everything was such a mess and all he wanted was for Ethan to wake up and tell him that they can work through this together. That they can support each other, that they can continue to live together and work together.

"Cal," Charlie said, drawing him from his thoughts, "he's going to have an x-ray and CT scan, alright?"

Cal's eyes widened. "A CT? Why a CT?"

"They are concerned that he hasn't woken up yet, but I'm sure it's nothing. Now, come to the staffroom. You need some tea inside of you. Then you can tell me what happened."

Cal put his hand around the mug. It was boiling, and usually would be too hot to hold, but Cal didn't feel the heat as much as he would have done. He felt too numb. "We had an argument. After he found out about Emilie and the Huntington's, after you left, he told me he wanted me to move out. He didn't want to see me... or you for that matter. He wanted us both to stay out of his way." He paused to swallow some of the warm liquid, hoping it would diminish the painful lump in his throat. "He told me that he wanted my stuff to be gone by the time he got home. I didn't want to move out, so I went home and got drunk."

"Then Ethan saw you," Charlie guessed, and Cal nodded wordlessly.

"We then had the argument. He told me... he told me I don't care about him. But I do... I just don't like showing it. It's too soppy. Ethan hates soppy stuff too. I tried telling him why I wouldn't tell him. I told him I didn't want to lose him. He said... he said... " Cal started to sob, and put a hand over his mouth to stifle it.

"It's okay, Cal. Take your time. I understand this is hard."

"He said I've already lost him," he cried, moving his head into his hands; back shaking with the force of crying. "I have, Charlie!"

He felt a hand on his back. It was light, but it grounded Cal. He tried to control his tears, but they wouldn't stop. His breathing came in hiccupping gasps.

"When Ethan gets better, you can sort this all out properly. He just needed time to get his head around it - like you did," he paused. "And I'm sorry for telling him, Cal. He needed to know."

Cal's crying stopped slightly, quieting down. "I would never tell him... I didn't have the guts. I know that, Charlie. I don't have the courage. He should have known from the start... so... thanks, Charlie. Thanks." Charlie looked surprised, but smiled gently - giving Cal a tissue.

He wiped his eyes and his nose, holding back sobs. "What happens if we never get along again?"

"You will, in time. Remember when you first came? You two were at odds. You got over it."

The staffroom door opened before they could continue their conversation. "Dr Knight, your brother is in CT and asking for you. He won't keep still." Even with Lily's cutting voice, Cal could still detect a hint of sympathy behind it.

Cal nodded, "see you later, Charlie."