Ar drothwy eu pen-blwyddi yn 60 oed, mae pedair o ffrindiau oes yn mentro ar daith arbennig. Ond a hwythau wedi byw bywydau gwahanol iawn, a fydd chwarae'n troi'n chwerw?
On the eve of their 60th birthdays, four lifelong friends venture on a special journey. As their lives have all been in complete contrast to one another, will the celebration turn bitter?
