By Season 4, their friendship has grown and Ziva is accepted by the rest of the team, as shown in the season's premiere "Shalom" where Tony and the rest of the team put their careers on the line and vow to prove Ziva's innocence before she is apprehended by the FBI for a crime she did not commit, knowing that their involvement could land them in prison. By the fifth and sixth seasons, Abby and Ziva are firm friends. When Ziva first appeared, she would flinch whenever Abby would hug her; however, by Season 6, Ziva overcomes her discomfort, and now accepts and returns the hugs.