Answer:
He receives a call from Dally, who was missing. Dally is asking for help to hide from the police.
Explanation:
Although you did not present the text to which this question refers, in the context of the question, we can see that you are referring to "The outsiders" a book that tells the story of Ponnyboy, a boy who lives in a violent environment, in amid street gang fights, while trying to find out who he truly is.
In this book, after getting into a very violent conflict, Ponnyboy sees the death of a friend and gets lost from another friend, called Dally, who he thinks may be dead too. He says this to Darry, who receives an unpredictable call. The call was made by Dally, who is fleeing the police after stealing a grocery store, and asked the gang to hide him.