Thunderclan is wondering why Bluestar brought a kittypet into the clan and Frepaw ends up getting into a fight with a full grown warrior ( Firepaw is 6 months and Longtail is 1 1/2 years old ) and Longtail ends up ripping off Firepaw's collar. So he gets excepted into the clan because Bluestar sees it as a sign from Starclan so Firepaw gets named her apprentice (which is a big honor).
Graystripe Fireheart Graystripe Fireheart
you are now warriors
Spotteedleaf is dead because Clawface killed her because Brokenstar sent him and she didn't have an apprentice so nobody could take over her duties. Then Yellowfang gets kicked out of Shadowclan because she was accused of killing her mothers kits because she was there when it happend and she said she could smell fox but no other cat could and then becomes the Thunderclan medicine cat after firepaw finds her in the woods.
Firepaw and Graypaw are trying to hide Ravenpaw from tigerclaw who is trying to kill him because he saw Tigerclaw kill Redtail the deputy of the clan and then he tried to kill Lionheart the deputy after Redtail so then he became deputy and set a trap for Bluestar to kill her in the next book so he could become leader.
Firepaw and Graypaw (Fireheart and Graystripe) become warriors after they proved their bravery by doing so well in a battle between Shadowclan and Thunderclan where they said Ravenpaw died so the could protect him from Tigerclaw.
Fireheart and Graysripe have to guard the clan in silence as all new warriors have to do.