Mr. Cunignham and some others in a mob try to prevent Atticus from representing Tom by killing Tom and or Atticus if he trys to stop them
Atticus must face some of his fears when Jem and Scout are bullied because of Atticus's role in the trial. He is concerned about how Jem and scout will handle these confrontations. He's especially worried about Scout, who is known for being very volatile.
Atticus faces many trials. When taking the case he had to choose between moral obligations and his children's safety, he is confronted by a mob and threatened, and he must also compile enough evidence to convince a small southern town that a black man is right and a white woman is wrong.
Atticus's sister, Alexandra, Disproves of him taking the case. Alexandra is less open-minded than Atticus. They are often at odds about how Atticus raises his children as well as him defending a black man.
Even though Atticus is more open-minded compared to Alexandra, he still holds a lot of personal prejudices. He must face his beliefs and decide what's more important to him, skin color, or the law.
Atticus has a special bond with his kids, he listens to them and never yells when disciplining them, which was uncommon or the time. He often lets them figure out what they're doing wrong through subtle parenting instead of outright saying they're bad. Atticus trusts his children to do what's right.