New Blue Bloods episode "Allegiance" airs tonight. Here is the plot summary:
Erin and Anthony team up with Erin's nephew, police officer Joe Hill (Will Hochman), to course-correct a trial when Joe becomes aware of witness tampering. Also, Baez forces Danny to help her find the killer of her favorite TV personality; a seemingly random shooting at police Lt. Raymond Moretti's (Tony Danza) home leads Frank to investigate who in the officer's family has criminal ties; and as Eddie works an SVU case, she questions her decision to become a police sergeant.
Here's some preview clips!