B.J. Mitchell

Evidence in an NCIS murder case reveals a rare painting on loan has been swapped for a fake, prompting DiNozzo Sr to share his knowledge and contacts of the black market art world with the team.

The team suspects that a man who made his money by donating sperm, was killed by a recipient who learned his records were inaccurate. Meanwhile, Brennan enters a feud with a fellow author.

Allison is having trouble with a case, while Sandra and Kate face off on a high-profile case that involves a young woman and a classified information leak.

When Stephanie and Charlie learn that Gabby has had a secret boyfriend, they meet him, finding him to be a bad influence.

After being recruited by a professional video gaming team, James learns that it is not what he thought it would be.

When the children abandon her on Halloween, Stephanie feels unnecessary; Charlie tries to keep the best house in the neighbourhood.