Ryan needs field surgery from Alex after getting shot. Clayton asks Caleb to erase any trace of his affair with Shelby, leading Caleb to stumble upon evidence that might exonerate Alex.
At Quantico training the recruits are given personalised assignments about catching a bomber which also relies on teamwork. Caleb accidentally reveals the existence of Shelby's half sister in the Middle East to the FBI. Raina realises that Simon is more interested in Nimah than her.
In the present, Alex turns herself in to inform the FBI of a threat from another bomb.
The series has reached a stage where although some people have sided with Alex and others are less trusted, we are reaching the point where sides might get flipped again such as Simon having his own agenda.
The series is still moving nicely along with a few shocks such as Miranda being badly injured.