Write me a story about a pair of brothers , where the older had a lot of promise , but now its up to the younger for whatever reason .

`` Mark you have to help them! Get up, go!'' 
 
 `` I ca n't David. I just ca n't. I have no energy left.'' The man collapsed against the wall sweaty and red. 
 
 `` Mark what the hell? Get up they're getting away!'' His big brother ca n't do something? The all-american quarterback, track and field champion, now vice president at a million dollar company ca n't help? 
 
 `` David it's up to you. You have to go instead. Find the kids, make whoever kidnapped them pay.'' 
 
 `` Why me? Why ca n't you? What's happening to you?!'' 
 
 `` Dave, I have cancer, it's terminal.'' 
 
 David froze. His voice yelled, `` No that's impossible!'' but his brain started to connect the dots. Trips into the city, a slight weight loss, his mother more fragile and emotional. Tears fell from his eyes. 
 
 `` I could n't tell you. I had to protect you.'' David suffered from depression for years, people were always helping him, protecting him, shielding him from the truth. 
 
 But not this time. This time he will do the protecting. He had to save those kids. 
 
 David looked down at his skinny body, pale from being indoors. He compared himself as always to his muscular brother. But now he knew he had no excuse. Either he fought or they won. His brother would n't be around to fight his battles anymore. 
 
 He got ready to run. `` Mark I love you.'' 
 
 `` I love you too little bro,'' Mark said. 
 
 He ran down the alleyway right towards the danger, right towards his battle. 
 

