What did the movie "December Boy" mainly talk about?

This story happened in Australia in the late 1960s. Four abandoned orphans grew up together. Because they were all sent to orphanages in1February, this small group of four people is called "1February boys". Four boys lived in an orphanage since childhood, but they were still not adopted by good people until they were teenagers. They have completely lost hope of joining a complete family.

This summer, the orphanage arranged for "December Boys" to spend their holidays on the south coast of Australia. During the holiday, they met a kind couple who were interested in adopting a boy. Faced with this once-in-a-lifetime opportunity, the four boys have their own worries and secretly hope to be adopted by themselves. As a result, the four began to gang up and be suspicious and hostile to each other. During the holiday, maddox (daniel jacob radcliffe), the oldest of the four boys, also met a girl who broke his heart-Lucy (Teresa Palmer), and felt the taste of love for the first time in his life.

After the holiday, the adoption decision of this kind couple was finally made. At this time, the four "December Boys" have already been released from the competitive mood, because this precious holiday has enabled them to truly see their life goals and build unprecedented hope and confidence in the future.