Crito
The dialogue takes place in Socrates' prison cell, where he awaits execution. He is visited before dawn by his old friend Crito, who has made arrangements to smuggle Socrates out of prison to the safety of exile. Socrates seems quite willing to await his imminent execution, and so Crito presents as many arguments as he can in order to persuade Socrates to escape. On a practical level, Socrates' death will reflect badly on his friends--people will think they did nothing to try to save him. Also, Socrates should not worry about the risk or the financial cost to his friends; these they are willing to pay, and they have also arranged to find Socrates a pleasant life in exile. On a more ethical level, Crito presents two more pressing arguments: first, if he stayed, he would be aiding his enemies in wronging him unjustly, and would thus be acting unjustly himself; and second, that he would be abandoning his sons and leaving them without a father.
Socratic dialogue
Plato wrote approximately 30 dialogues, in most of which Socrates is the main character. Strictly speaking, the term refers to works in which Socrates is a character. As a genre, however, other texts are included; Plato's "Laws" and Xenophon's "Hiero" are Socratic dialogues in which a wise man other than Socrates leads the discussion (the Athenian Stranger and Simonides, respectively). The protagonist of each dialogue, both in Plato's and Xenophon's work, usually is Socrates who by means of a kind of interrogation tries to find out more about the other person's understanding of moral issues. In the dialogues Socrates presents himself as a simple man who confesses that he has little knowledge. With this ironic approach he manages to confuse the other who boasts that he is an expert in the domain they discuss. The outcome of the dialogue is that Socrates demonstrates that the other person's views are inconsistent. In this way Socrates tries to show the way to real wisdom. One of his most famous statements in that regard is "The unexamined life is not worth living." This philosophical questioning is known as the Socratic method. In some dialogues Plato's main character is not Socrates but someone from outside of Athens. In Xenophon's "Hiero" a certain "Simonides" plays this role when Socrates is not the protagonist.