<P> Meanwhile, back at the penthouse, Mogadorians land on the roof and rappel into the penthouse . Sam notes it is a relatively small force as if they were not expecting much resistance . They did not expect the comatose Garde to be guarded by their human allies . Bernie Kosar and Malcolm keep them at bay while Sarah and Sam go to get weapons . More Mogadorians come in, and Sam baits them into the training room by declaring that the girl they are looking for--Ella--is this way . He then turns on the newly restored training software to "insanity" and watches as the room deals with the Mogadorians . Sarah and Sam shoot the stunned Mogadorians and then rejoin Bernie Kosar . They hear wave two getting ready to come and attack . Bernie Kosar tries to hold them off, but Sam discovers his dying father and is unwilling to leave him . </P> <P> The book is narrated in the first person, with Number Four (John), Number Six, and Ella as narrators . </P> <P> Ella wakes up in a strange place . She sees Mogadorians and tries to escape using the Great Book as a weapon . She realizes that she is in a spaceship . Setrákus Ra claims to be her grandfather . He tries to force her to eat and tells her that he used to be an Elder and that he experimented with altering genetics . He also tells her about how Lorien was controlling everything, and he rivaled it . Then, he puts a binding charm over himself and Ella . The Mogadorians try to force Ella to read the Great Book by blasting an alarm at her whenever she doesn't . Ella rips the book apart . Setrákus Ra talks to her, mentioning her "betrothed". Eventually, he arrives . Ella is disgusted to note that she is betrothed to the treacherous Number Five . She finds out that Five killed Eight, and is even more upset . Setrákus Ra trains Ella to use her Legacy Dreynen, using Five as the equivalent of a punching bag . She apologizes to him later telepathically . He responds that he deserved it and that they need to escape . Ella wakes up later to find Five talking about how Mogadorians were bad . She and Five decide to escape . She finds out that Five was not aware of their betrothal either . Setrákus Ra catches them . Five stabs Setrákus Ra and the blow injures Ella . She loses consciousness . </P> <P> Ella wakes up dressed formally for the invasion, with a Mogadorian injection of something disgusting where she was stabbed . Setrákus Ra forces her to get up . She sees a message from Phiri Dun - Ra saying that the Garde is at the Sanctuary . Ella accompanies Setrákus Ra to greet the humans . She sees Number Nine and tells him telepathically to break Ra's staff . She witnesses Ra talking about how the faithful humans will greet him, and then a human leader denying what he said . She realizes that Number Four is there too . </P>

Who plays sam in i am number 4