Ex Scorpion member Mark Collins proves to Walter from his cell that they need him to pinpoint timely the location of seismically created methane leaks from Nordic permafrost, which could trigger irreparable greenhouse warming. Cabe's new Homeland director holds him personally responsible if Mark's mission participation with a heavy charge electronic bracelet goes wrong. Toby and Happy must postpone their honeymoon and move, but bicker over their marital pact. Collins proves both dangerously clumsy and a valuable ally to deal with new leaks due to after shocks, which cause more trouble for their repair mission.
—KGF Vissers