A few characters are stunned by crackling electricity, but not seriously injured.
A few scenes with very mild "space violence". Ships being vaporized by an electrical storm projected by a menacing space cloud and a few explosions on the ship. The Enterprise is attacked by the same kind of electrical storm attack, but the ship's advanced energy shields manage to ward it off, but the Chief Engineer warns that those shields cannot withstand another attack as a second shot approaches.
One scene with a transporter malfunction that vaporizes two Enterprise crew members. Partially onscreen, however their deaths are heard offscreen.
One character is shown with blood coming from a burned hand but he is quickly treated.