Tagged Atoms (1979)

1950. The young people from the suburbs of Sofia are waiting to join the army. Five-childhood friends stand in front of military commission. One of them receives an "unfit" verdict. For him this is a heavy blow and the others decide to help him win over the commission. The boys start to train the rejected one. At some point, he starts to feel like the rest. He is ahead of them... in the love department. The unfix-able happens, the boy dies of exhaustion before he hears "fit" verdict of the commission.