Beowulf has heard stories about the terrors that Grendel was causing. He was hunting the warriors of Heorot and over the span of twelve years, Grendel has killed more than 30 of King Hrothgar's men. They were in search of a great warrior who could defeat Grendel, So they called upon Beowulf.
CROSSING THE FIRST THRESHOLD
Beowulf could not refuse helping King Hrothgar. So Beowulf had gathered his best men and decided to cross the sea to fight the monster. Beowulf knew that he was really the only one that could possibly help Hrothgar.
TEST, ALLIES, AND ENEMIES
King Hrothgar becomes Beowulf's mentor, Beowulf uses the incident with Grendel as a guide for when he becomes king. Through Hrothgar, Beowulf learns that a king who cannot fight is useless to his people. Unferth lends Hrunting, Beowulf's sword, To help him defeat Grendel.
Beowulf and his fourteen brave men crossed over the sea from their home Geatland to the home of the Danes.
Beowulf battles Grendel, and outsmarts him. Beowulf takes Grendel's arm as a trophy, mortally wounding him. Later he also battles the swamp hag and the dragon. An important ally against the dragon is Wiglaf.