Several long hours have passed since Gibbs got back to dry land after he and Kate stopped a whale hugger/eco-terrorist, Sean Travis who had posed as the deceased Petty Officer Drew from releasing sarin gas into the air conditioning system of the USS Philadelphia which almost would have certainly killed the entire crew if the plan had worked.
Luckily they had managed to get his body out of the sub before the sarin gas was even released although Travis committed suicide as a back-up plan once he realized he had been discovered, possibly as a last resort yet his plan had still ended in failure and the FBI were busy arresting or tracking down the rest of the members of the radical eco-terrorist group that Travis had been a part of.
But the one person Gibbs can't stop thinking about is Special Agent Timothy McGee, the Agent that's stationed at the Norfolk Naval Base and the same person who had called in Gibbs and his team to help investigate the dissolved body in the barrel of acid.
From first impressions, Gibbs knows that the younger Agent looks green, eager to please his superiors and more than willing to stay in the background. Unfortunately, DiNozzo had used that to his advantage, bullying the younger Agent into helping him and had even insisted that McGee call him "sir".
Although McGee's appearance was brief, he's left a lasting impression on Gibbs who only hopes that he hasn't seen the last of the innocent and very handsome Norfolk Agent.
Because like it or not, Leroy Jethro Gibbs is more than willing to admit that he has a crush on Timothy McGee.