Lt. Rudy's Amazing Cell Phone + Clean Face (spoilers)
1) Makes First Contact with Bad-Attitude Lady Scientist
2) Confined in a Home Depot garden shed with nukes
3) Doused with volcanic ash
4) Diffuses nuclear warhead
5) Doused by tsunami
6) Hauling nukes onto boat
7) Sailing around in broad sunlight
8) Trudging through sand and sea
9) Dodging exploding body parts
10) Climbing rocks
11) Surrounded by lava
Lt. Rudy never breaks a sweat, and has phone service no matter where he is on Earth - even an island volcano in the middle of the ocean with gushing lava - 5 bars!!!!!