The Sayans arrive just as told and Yamcha is the first to die. He
gets killed when one of the Saiyans plants five "Saibiamen", which
are little green men, and one of these easily kills him. After Yamcha
dies, the little green men are all killed. Goku has not yet gotten
been revived. The two Saiyan's names are Nappa and Vegeta. Vegeta
does not fight at all, but just watches and gives orders to Nappa.
This is when Piccolo first finds out about who he really is since the
Saiyans call him a "Namek". The next to go is Chaozu when he
self-destucted in an attempt to kill Nappa. But this did nothing to
Nappa. Tienshinhan is enraged and goes for Nappa, but gets a limb cut
off and later dies. Then Piccolo and Krillin come in and attack him
in mid air when he is not seeing. As Nappa is heading to hit the
Earth, Piccolo and Krillin both scream at Gohan to finish him off,
but Gohan shows his coward ness and does nothing. This might of been
their only chance to defeat him. Vegeta tells Nappa to stop messing
around, but to wait a while longer for Goku for the fight to really
start.
After Goku is revived, he first goes to Karin tower to
pick up some Senzu beans and takes off in his "Flying Nimbus". Gohan
gets extremely angry after Nappa knocks Piccolo unconscious in an
attempt to grab his tail, which is supposed to be a Saiyan's weak
spot, but Nappa had over come that already. Gohan attacks Nappa, but
does no real damage. Then Krillin attacks too, and too has no real
damage. Nappa gets angry and sends a powerful attack towards Gohan,
but is blocked by Piccolo, and so Piccolo dies.
Goku finally arrives with a power level of 5,000 and
increasing. He comes to find out that all of the Z warriors, except
for Krillin and Gohan had died and attacks Nappa. Nappa is astonished
at Goku's power. Vegeta then says that he will personally kill Goku
and so Nappa goes towards Krillin and Gohan. Goku does the Kaioken
attack which leaves Nappa on the floor. Nappa asks Vegeta for help,
but Vegeta kills him in cold blood for being weak. The fight between
Goku and Vegeta begins, Vegeta is then astonished at Goku's power.
Since this proves to be a hard match for Vegeta, he decides to turn
into Oozaru.
Goku decides to do the Spirit bomb, but he needs time to do this. So
he does the "Solar flare" to blind Vegeta for a little while. But
Vegeta is too quick and tortures Goku up to the point where he is
almost dead. Yajirobe, which had been in hiding all along comes out
of no where and cuts off Vegeta's tail, so now Vegeta goes back to
his normal size. Gohan steps into the fight now although he knows he
is no match for Vegeta. Goku, now badly hurt, calls Krillin and tells
him to do the Spirit Bomb for him (Goku had still been collecting
energy during this time).
Krillin gets the energy and waits for just the right moment to use
it. Krillin fires it, but misses, Gohan gets it back and throws it
again and this time hits Vegeta. This sends Vegeta through the air,
but is not defeated yet. Since Vegeta had made an artificial moon to
turn into Oozaru, Gohan happens to look at it and then too transforms
into Oozaru. Now the tables have turned. Gohan, as Oozaru, lands on
Vegeta and is now defeated. Krillin, now really weak, finds his last
strength to finish Vegeta off by killing him with Yajirobe's sword,
but Goku decides not to kill Vegeta and lets him go. Vegeta leaves
swearing vengence.