Pretty good, but a weak ending.

Highlights: Rhys being Torchwood Reserves, and Ianto pouring his heart out. From what RT says, both these things lead into Children of Earth.

Lowlight: Taking a solution that actually makes sense (using an EMP to disrupt the connection) and explain it with a metaphor that doesn't ("Just like a computer uses an EM pulse to repel viruses!" What. The. Flip?)